Biology Homework Questions & Answers Archive

The structure of bone tissue suits the function. Which of the following bone tissues is adapted to support weight and withstand tension stress? compact bone trabecular bone irregular bone spongy bone Submit Request Answer

O mylabmastering.pearson.com Post-Lecture - Chapter 5 - Homework Problem 5.72 - Enhanced - with Feedback 14 of 18 Reviex I Constants I PeriodicTable The following table contains some standard enthalpies of formation, ΔH°f, at 298 K. Substance Formula ΔH°f (kJ / mol) --------- Carbon dioxide CO2(g) -393.5 Carbon monoxide CO(g) -110.5 Methane CH4(g) -74.80 Propane C3H8(g) -103.85 Water H2O(l) -285.8 Water vapor H2O(g) -241.8 Part A Many portable gas heaters and grills use propane, C3H8(g) Using enthalpies of formation, calculate the quantity of heat produced when 11.0 g of propane is completely combusted in air under standard conditions. Assume that liquid water is forming. Express the heat in kilojoules to three significant digits.

The step in designing a customer value-driven marketing strategy in which a company divides a market into distinct groups of buyers is known as market segmentation.

4. ALGAE Ronald owns a fish tank in the shape of a rectangular box. The tank is 18 inches high, 14 inches deep, and 30 inches long. Ronald went on a one-month vacation. When he returned he found that the sides and bottom of his fish tank were covered with algae. What is the area that was covered?

The phase of mitosis in which the chromosomes condense and centrosomes move to opposite poles of the cell is Multiple Choice metaphase. " interphase. anaphase. prophase.

Describe the function of the chordae tendineae and the papillary muscles. What is the significance of the difference in thickness between the wall of the aorta and the wall of the pulmonary trunk? List the correct pathway through which blood must flow in relation to the region of the heart. Assume blood is currently in a vena cava and will eventually enter the aorta. Include the major blood vessels (arteries and veins) attached directly to a heart chamber, the four heart chambers, and the four heart valves in your list.

Question 8 (Mandatory) (2 points) You are reading an article about an outbreak of an infectious disease. Which of the following would you recognize as the full scientific name of the organism causing the disease, just because of the way that it's written? Anthrax staphylococcus Bacillus anthracis E. Coli

The causes the stage to move upward or downward. Select one: a. mechanical stage b. iris diaphragm c. objective lens d. coarse adjustment knob Sally flips the switch to turn on the light in her bedroom and the light does not come on. She notices that all the other lights in the house work. She wonders if the light bulb in her room has burned out. Sally gets a new light bulb and uses it to replace the old light bulb. She turns on the switch and the light works. Thinking the light bulb is bad is which of the following? Select one: a. Theory b. Experiment c. Conclusion d. Observation e. Hypothesis When you over exert yourself in the gym your muscles begin to burn. The burning sensation is because the build up of acid in your muscles cells. What is the primary cause for the build up of that acid?

Which statement describes the muscle response at a stimulation interval of 120 ms (about 8 stimuli per second)? The muscle was only partially relaxed before each stimulus, and the contractions generated more force than individual twitches. The muscle was only partially relaxed before each stimulus, and each contraction generated the same force as an individual twitch. The muscle had time to completely relax before each stimulus, and each twitch generated the same force. The muscle was in the process of contracting when each stimulus arrived, and the contractions generated more force than individual twitches.

The volume of air inhaled or exhaled during a respiratory cycle is called the volume.

Multiple Choice Question What is the role of the epiglottis? Covers the posterior nasal aperture when breathing Covers the glottis when swallowing Covers the esophagus when breathing Covers the glottis when breathing

True brachiation is found in: Old World monkeys chimpanzees and gorillas New World monkeys gibbons and siamangs

Indicated with the letter B in this figure are the digital sheaths.

Of the following events from the light reactions of photosynthesis, which would be expected to occur first? A Light-induced reduction of the primary electron acceptor in the reaction center of PS II takes place. (B) ATP synthase makes ATP (C) NADP+ gets reduced (D) Protons are pumped into the thylakoid space

Which of the following terms is NOT associated with connective tissue? - widely spaced cells - exocrine gland - collagenous fibers - matrix

Where does calcium attach to the contractile protein complex? myosin actin troponin tropomyosin

Which of the following is true about veins? Veins are considered blood reservoirs Venous contain large pressure gradients Veins have thick tunica media Venous valves form from the tunica media

The resting potential of a cell is negative because at rest there is an excess of K+ inside the cell, and the membrane is permeable chiefly to K+.

The cell membrane has many functions. One of the most important is facilitating the passage of molecules into and out of the cell. Some molecules can freely pass through the membrane, while others require a channel in order to enter or leave. Which of the following molecules will pass most freely through the cell membrane? Oxygen Glucose Insulin Water Na+

The basic structural framework of the plasma membrane is primarily made of: cholesterol molecules glycoproteins integral (transmembrane) proteins peripheral proteins phospholipids

The apocrine sweat glands are not the primary gland involved in thermoregulation.

Identifique el grupo al que pertenece esta base nitrogenada en el ARN. Seleccione una: A. Timina B. Purina C. Pirimidina D. Citosina E. Uracilo

Consider the stereoisomers (A-E) drawn below: Which structure is an enantiomer of structure A? structure B structure C structure D structure E

3. At which of the following checkpoints is the DNA checked for damage and, if damage is present, the cell is placed in G0 phase? a. M c. G2 b. G1 d. None of these are correct. 4. Where is the checkpoint that assesses the DNA for damage? a. G1 c. G2 b. S d. M 5. Which of the following act as the brakes of the cell cycle and prevent cells from dividing too quickly? a. oncogenes b. proto-oncogenes c. cyclins d. tumor suppressor genes

Bones such as the carpals that have the same length and width are classified as bones.

Endangered populations typically have a small number of individuals and little genetic variation. Which statements accurately describe the relationship between evolution and genetic variation in an endangered population? Select all that apply. - Genetic drift can lead to allele fixation, and thus reduce genetic variation in populations. - Gene flow between populations tends to increase when genetic variation is low. - Natural selection can decrease genetic variation by favoring alleles that provide the highest fitness. - Mutation rates typically increase when genetic variation is low.

2. Durante el ciclo ovárico en una mujer sana, ¿cuál de los siguientes estímulos provoca directamente la menstruación? A) El aumento de los niveles plasmáticos de estrógenos. B) El descenso de los niveles plasmáticos de la hormona progesterona. C) La disminución de los niveles plasmáticos de la hormona foliculoestimulante. D) El aumento de los niveles plasmáticos de hormonas liberadoras de gonadotrofinas.

1. Peel a section of thin onion skin membrane and place on slide. 2. Place a few drops of iodine solution on the onion skin and cover with a cover slip. 3. Observe and sketch under lower and higher magnification. 4. Label - Cell Wall, Nucleus 1.Why does a specimen viewed under the microscope need to be thin? 2. Why did we add methylene blue to the cheek cells? 3.What structures are visible in your cheek cells? 4. What structures were visible in the Elodea cell? 5. What are some major structural differences between the plant and

Question 18 1 pts The figure below illustrates a eukaryotic cell. Which of the following best describes how the three structures indicated by the arrows work together? To catabolize nutrients and produce ATP for intracellular energy storage To synthesize all ribosomal proteins To synthesize and isolate proteins for secretion or for use in the cell To synthesize lipids and modify toxic substances in order to render them harmless

Chalk forms from - magnesium rich fluids that chemically alter limestone bearing reefs - evaporation of magnesium rich waters - the hard parts of microscopic organisms that accumulate on the sea floor - direct precipitation from seawater

Female Reproductive System

Two individuals start the same training program at the same time, but one is able to grow muscle faster and larger than the other. What is the least likely explanation for this? A. One individual was born with more muscle fibers. B. One individual has a more consistent training schedule. C. One individual is consuming a healthier diet. D. One individual has a more intense training schedule. Please select the best answer from the choices provided. A B C D

Question 18 of 25 Young sea turtles have many natural predators. Which adaptation helps sea turtles successfully reproduce? A. Having eggs that attract predators B. Producing a large number of eggs C. Spending years caring for offspring D. Caring for one offspring at a time

What is the difference between false and true ribs? How many of each are present in humans?

Züchtungsmethoden Züchtung beruht auf der Auswahl von Individuen für die Fortpflanzung über viele Generationen hinweg. So entstanden Tierrassen und Pflanzensorten für die Ernährung sowie Die Entstehung des Saatweizens 1 Stationen auf dem Weg zum Saatweizen (A, B, D Chromosomensätze) Aus archäologischen Funden und durch Vergleiche von Genomen konnte die Entstehung des Saatweizens rekonstruiert werden. Die ersten angebauten Weizenarten waren Einkorn und Emmer. Das Herkunftsgebiet der Getreidearten ist der Vordere Orient. Lange Zeit blieb der Anbau von Weizen hinter dem von Einkorn und Emmer zurück. Er im 11. Jahrhundert etablierte sich Weizen, der sich besser zum Brotbacken eignet. Triticale ist ein Hybride aus tetraploidem Weichweizen (4n) oder hexaploidem Weichweizen (6n) mit diploidem Roggen (2n). Sie tritt auch unter natürlichen Bedingungen auf. Die Kreuzungen sind jedoch meist unfruchtbar. Um eine fruchtbare Form des Triticale zu erhalten, behandelte man das Kreuzungsergebnis mit Colchicin und verhinderte so die Trennung der Chromosomenpaare während der Meiose. 2 Eigenschaften von Roggen, Weizen und Triticale Haustierrassen und Zierpflanzen. Die Individuen unterscheiden sich in der Anzahl der Chromosomensätze. Ein- und Mehrnutzungsrassen Alte Hühnerrassen bringen Bauern doppelt Glück. Früher hielten Bauern meist Hühner, die zweierlei taten - ausreichend Eier legten und Fleisch lieferten. Das soll sich wieder ändern. Zwei Dutzend beigefarbene Hühner und schwarz-bunte Hähne toben durch ihren Auslauf unter alten Eichen, scharren auf dem Kröter Hof im Wendland nach Fressbarem, verstecken sich im Brennnesselfrast. Die Lachshühner sind eine Zweinutzungsrasse. Das heißt, die Hennen haben eine passable Legeleistung, und die Hähne setzen ordentlich Fleisch an. In der üblichen bäuerlichen Hühnerhaltung waren die Rassen dann entweder auf Eier oder Fleisch züchtet. Das führte zur Praxis, dass männliche Küken der drei bis vier weltweit verbreiteten Legehennenlinien gleich nach dem Schlüpfen zu Tierfutter zerhäckselt oder vergast werden. Erste Projekte versuchen, den Missstand zu beseitigen. So lässt die in diesem Jahr gegründete Bruderhahn Initiative des Bauckhof in Klein Sustedt bei Uelzen und fünf weiterer Höfe die männlichen Nachkommen der Legehennen am Leben und macht aus ihnen Masthähnchen. Die Höfe und drei beteiligte Naturkostgroßhändler nehmen einen Aufschlag von vier Eurocent pro Ei und finanzieren damit die Aufzucht der Hähnchen. Sie nennen ihren Aufschlag "Vier Cent für die Ethik". Die Bruderhahn Initiative arbeitet derzeit noch mit einer der industriellen Hybrid-Legerassen. Carsten Bauck will mehr: „Unsere Hähnchenmast mit einer modernen Legerasse ist gewissermaßen eine Brückentechnologie, ein Übergang zu einer modernen Zweinutzungsrasse. Die traditionellen Rassen sind zu naturnah, um in den heutigen Vermarktungsrhythmus zu passen. So legen sie zwischen Weihnachten und Ostern, wenn die Nachfrage am größten ist, nur wenige Eier." (Die Welt 10.11.2012) AUFGABEN 1 Beschreiben Sie die Entstehung des Saatweizens unter Verwendung von Abb. 1. 2 Erläutern Sie die Zuchtziele bei Triticale 3 Erklären Sie anhand von Abb. 3, dass erst durch die Chromosomenverdopplung bei der Erzeugung von Triticale eine nutzbare Getreideart entstanden ist. Mutationszüchtungen Bei der Züchtung wählt man zwischen Individuen, die sich in ihren genetisch bedingten Merkmalen unterscheiden. Diese Unterschiede beruhen auf zufällig auftretenden Mutationen. Unter Mutationszüchtung im engeren Sinne versteht man die Auslösung von Mutationen durch Röntgenstrahlung oder mutagene Chemikalien wie EMS (Ethylmethansulfonat) bei Pflanzen und die anschließende Selektion der Mutanten unter den Nachkommen. Auf einer solchen Mutationszüchtung beruht die Erzeugung einer Kartoffelsorte, mit der Amylopektin für die industrielle Verwertung produziert wird. Für eine Reihe von Anwendungen ist die verzweigte Form der Stärke, das Amylopektin, geeigneter als die unverzweigte Amylose. 4 Kartoffelsorte für die Amylopektin-Produktion AUFGABEN 6 Erklären Sie, dass bei der Mutationszüchtung unter Abertausenden von Mutanten nur selten Formen mit positiv veränderten Eigenschaften auftreten. 7 Im Gegensatz zur Gentechnik werden bei der Mutationszüchtung keine Fremdgene in Lebewesen übertragen. Deshalb sind entsprechende Lebewesen oder Produkte daraus nach dem Gentechnikgesetz nicht kennzeichnungspflichtig. Nennen Sie mögliche Argumente, warum Kritiker dieses Vorgehen dennoch ablehnen könnten.

Which of the following would the nurse expect to assess if a patient has a lesion of the sympathetic nervous system? a) Bilateral dilated pupils b) Unilateral dilated pupil c) Argyll Robertson pupils d) Constricted pupil unresponsive to light

Which structure is a histone? a. Structure A b. Structure B c. None of the above

Which mode of inheritance is characterized by the presence of affected individuals in every generation? Autosomal dominant (AD) Autosomal recessive (AR) X-linked recessive (XR) X-linked dominant (XD)

Question 80 (1 point) Listen Invisible fats include the fats in: margarine. fried foods. shortening. sour cream.

A ship carrying 1000 passengers is wrecked on a small island from which the passengers are never rescued. The natural resources of the island restrict the population to a limiting value of 5740, to which the population gets closer and closer but which it never reaches. The population of the island after time t, in years, is approximated by the logistic equation given below, Complete parts (a) through (c). P(t) = 5740 / (1 + 4.74 e^(-0.4 t)) a) Find the population after 15 years. (Round to the nearest integer as needed.)

What is a phospholipid with carbohydrates attached to it called? Glycolipid Glycoprotein Steroid Phosphoglucose

Both halotolerant microbes and halophiles require elevated concentrations of NaCl for growth.

The value of k which makes the matrix [9 -2 -3; -8 1 -8; 7 k 4] singular is k =

Microbes that grow optimally between pH 5.5-8.0 but are inhibited above and below this range

What ion enters a neuron causing depolarization of the cell membrane? Select one: a. PHOSPHATE b. POTASSIUM c. CHLORIDE d. SODIUM

In addition to protection (physical and chemical barrier), the skin serves other functions. Which of the following is another vital function of the skin? It absorbs vitamin C so that the skin will not be subject to diseases. The cells of the epidermis store glucose as glycogen for energy. It aids in the transport of materials throughout the body. It converts modified epidermal cholesterol to a vitamin D precursor important to calcium metabolism.

The force driving simple diffusion is , while the energy source for active transport is .

Identify a reason why cosmetologists should study and have a comprehensive understanding of haircutting. Select the correct response: because haircutting is the basic foundational skill upon which all hair designs are built because they are licensed to diagnose, treat, prescribe, or work on unhealthy hair and perform any service required in the process because haircutting services are listed under a podiatry license, and performing procedures that are listed under any podiatry license is a primary responsibility of cosmetologists because they are required to inform clients about the parts of the hair that will be affected by haircutting

Extending a joint beyond the zero position is always an abnormal movement.

During flu season, the influenza virus infects many people. During infection, the virus binds to proteins on the outside of a cell and tricks that cell into allowing the virus to enter the cell. Once inside, the virus infects the cell and forces the cell to make more viruses that can then go on to infect more cells. What type of cell transport is the virus using to get into the cell? exocytosis phagocytosis receptor-mediated

All of the following are true of the Rb gene, EXCEPT: Rb mutation of one allele causes retinoblastoma. Rb normally inhibits growth. Rb mutation is common to many types of cancer. Rb is a tumor suppressor which inhibits trascription activity.

Which characteristics are associated with oily skin types? Select the correct response: overproduction of sebum, clogged pores, and open and closed comedones enlarged and clogged pores and comedones on the forehead, nose, and chin insufficient lipid activity and pores that are not visible to the naked eye few imperfections, no sensitivities, barely visible pores, and a radiant complexion

Triglycerides

Dye injected into a plant cell might be able to enter an adjacent cell through a gap junction a tight junction a cell wall plasmodesmata a microtubule

For part 2 of the experiment, the contents of which test tube is disposed of in the HEAVY METALS waste container?

Select all the organisms that are members of domain Eukarya. More than one option may be correct. multicellular protists bacteria archaea fungi animals unicellular protists plants

Compare and contrast the epidermis and dermis. Be sure to discuss both structure AND function. Describe AT LEAST TWO (2) similarities and AT LEAST THREE (3) differences.

Which of the following statements accurately describes glycolysis? Multiple Choice 1. Glycolysis uses no molecular oxygen and occurs in the mitochondria. 2. Glycolysis uses molecular oxygen; however, it occurs in anaerobic environments. 3. Glycolysis uses no molecular oxygen; however, it can occur in aerobic environments. 4. Glycolysis uses molecular oxygen and occurs in aerobic environments. < Prev 38 of 50 Next >

Multiple Cholce Question Which aspect of antibiotic resistance development in microbes is depicted in this image? Antibiotics cause individuals to mutate as antibiotic material is inserted into bacterial cells. Random genetic mutations create antibiotic-resistant individuals that survive and multiply to develop into an antibiotic-resistant colony. Conjugation among different types of bacteria creates mutatedresistant genes spreading antibiotic resistance within a colony.

Question 4 1 pts As grapes ripen: The acidity level and the sugar level both drop The acidity level and the sugar level both increase The acidity level increases and the sugar level drops The acidity level drops and the sugar level increases

The assessment technique that will vary the most due to human error is height to waist to height ratio

Basal bodies

Question 7 fats are found in partially hydrogenated vegetable oils. Saturated Trans fats Unsaturated Question 8 Saturated fats and trans fats should be limited in our diet. True False Question 9 Unsaturated fats are good for you. Which food listed has primarily unsaturated fat? Eggs Bacon

If involution of the animal pole cells in the frog did not occur in gastrulation what would be the consequence? ectoderm would not form properly blastocoel would be destroyed archenteron would not form mesoderm would not form properly

In a population where allele frequencies were initially measured as 50% A and 50% a, subsequent measurements taken many generations later reveal the same frequencies of 50% A and 50% a. What is the most likely explanation for this outcome? - Genetic drift caused a change in allele frequencies. - The population is in a state of genetic equilibrium. - Selective pressures led to a shift in allele frequencies. - Mutations introduced new alleles into the population. - None of these is correct.

An allele refers to alternative versions of a gene that codes for the same trait (for example: eye shape). True False

What is the total magnification of a specimen using the 40 X objective?

Question 15 (2.5 points) If the respiratory system fails, which other body systems will eventually fail? - Circulatory and digestive - Circulatory, nervous, and digestive - All body systems - Genitourinary, nervous, and musculoskeletal

Bone growth in which the bone increases in diameter is called

Foods rich in vitamin C generally include: - citrus fruits

How is water different from saline in terms of its tonicity? In this scenario, what effect on the residual malignant cells is the surgeon trying to achieve by use of the sterile water? Compare and contrast the osmotic reactions that occur between eukaryotic and prokaryotic cells when placed in hypertonic or hypotonic solutions. Discuss the other differences between eukaryotic cells and prokaryotic cells.

The table below shows the results of a survey that asked 1056 adults from a certain country if they favored or opposed a tax to fund education. A person is selected at random. Complete parts (a) through (c). - Support Oppose Unsure Total Males 151 323 11 485 Females 245 302 24 571 Total 396 625 35 1056 (a) Find the probability that the person opposed the tax or is female. P (opposed the tax or is female) = .847 (Round to the nearest thousandth as needed.) (b) Find the probability that the person supports the tax or is male. P (supports the tax or is male) = .691 (Round to the nearest thousandth as needed.) (c) Find the probability that the person is not unsure or is female. P (is not unsure or is female) = (Round to the nearest thousandth as needed.)

What shape is the humerus? Short Flat Irregular Long

Which statement correctly describes the origin of lymph fluid? Lymph is secreted into the lymph vessels. Lymph is fluid collected from arteriovenous anastomoses. Lymph is excess tissue fluid formed from plasma that has leaked from capillaries Lymph is collected from fluid that accumulates in veins as blood slowly circulates back toward the heart. Submit Request Answer

Review Transcription produces which of the following? mRNA rRNA tRNA mRNA and tRNA mRNA and rRNA mRNA, tRNA, and rRNA are all produced by transcription. Submit Request Answer Part B

A survey at Pizza Hut showed that 53 people like sausage pizza, 29 people like Hawaiian pizza, and 14 people like both sausage pizza and Hawaiian pizza. How many people like either sausage pizza or Hawaiian pizza? 82 96 68 67

The talus, calcaneus, navicular, cuboid, and lateral, intermediate, and cuneiform bones are all part of the foot.

Osteoblasts are , whereas osteocytes are Multiple Choice bone-forming cells; bone-dissolving cells bone-forming cells; mature bone cells mature bone cells; bone-forming cells bone-dissolving cells; mature bone cells

Atom Cell Tissue Organ Organ system Organism

UV radiation is used extensively to destroy microbes in the air, drinking water, food items

A eukaryotic cell contains many compartmentalized organelles that organize its interior. Each organelle is a discrete unit surrounded by a membrane and has a specialized function. Other structures, such as ribosomes or the cytoskeleton, are not surrounded by a membrane. The generalized animal cell shown is colored so that the features can easily be distinguished from each other. Label each structure with its function. Choose the best answer for each structure. protein transport out of cell

Which is a small, membrane-bound sac that functions in storage and transport within a cell? a vesicle a peroxisome the endoplasmic reticulum a ribosome

Select the phrases that describe the plasma membrane. - creates a barrier between the inside and outside of the cell - maintains the correct ion concentration inside the cell

Endotoxin Multiple Choice determines bacterial shape. is found in Gram-positive cells. is toxic due to the effects of the peptide side chains. consists of lipopolysaccharide. may have different effects depending on the bacterial species.

The sample space listing the eight simple events that are possible when a couple has three children is bbb, bbg, bgb, bgg, gbb, gbg, ggb, ggg. After identifying the sample space for a couple having four children, find the probability of getting four girls and no boys. Identify the sample space for a couple having four children.

This tissue is found in areas subject to friction, such as the mouth or skin surface: pseudostratified stratified squamous simple squamous transitional simple columnar

Match the step of viral replication on the left with what is happening during that stage on the right. (i) Instructions attachment penetration synthesis assembly release new viruses depart from the host cell host cell produces viral nucleic acids and proteins new viruses are put together from newly produced protein coats and nucleic acids viral nucleic acid released inside host cell virus binds to cell surface

Question 12 Which of the following would most likely increase the demand for peanut butter? a decrease in the price of jelly, a good that is often used with peanut butter the discovery that excessive consumption of peanut butter is harmful to one's health crop failures that raise the price of peanuts the invention of a new product that consumers think is a good substitute for peanut butter Question 13

Identify the highlighted bone.

Select all that apply Not all mRNA molecules are equally stable; select all of the ways that this can affect gene regulation. The protein that an mRNA encodes may be destroyed. An mRNA molecule may be degraded before it is translated. An mRNA molecule may be degraded before it is transcribed. An mRNA molecule may persist long enough to be translated many times.

Standard Deviation Question 14, 5.4.13-T HW Score: 31.43%, 165 of 525 points Save Part 2 of 3 Points: 0 of 15 A livestock cooperative reports that the mean weight of yearling Angus steers is 1123 pounds. Suppose that the weights of all such animals can be described by a Normal model with a standard deviation of 95 pounds. a) What percent of steers weigh over 1050 pounds? b) What percent of steers weigh under 1200 pounds? c) What percent of steers weigh between 950 and 1100 pounds? a) 77.9% of steers have weights above 1050 pounds. (Round to one decimal place as needed.) b) % of steers have weights below 1200 pounds. (Round to one decimal place as needed.)

Which layer of the epidermis is found only on the palms of the hands and the soles of the feet? stratum corneum stratum lucidum stratum basale stratum spinosum

The nurse is caring for a 5 -year-old child in the outpatient clinic. The mother reports that the child attends a daycare facility four days out of the week and that recently a message was sent home that a child in the group had been diagnosed with the flu. The mother reports the child feeling "hot and cold," and complaining of a headache and a sore throat for approximately two days prior to this visit. Taking into account the child's most likely exposure to the influenza virus, as well as being diagnosed with uncomplicated influenza, when will the child most likely begin to experience symptom improvement?

QUESTION 5 What can be said about an animal that has the genotype BB? Select all that apply. They have two recessive variants of the gene. 100% of their offspring will inherit the dominant form of the gene. They are homozygous for this gene. The phenotype will be the trait associated with the recessive allele. QUESTION 6 What term describes an allele that is displayed phenotypically only if an individual has two copies of the allele? heterozygous recessive dominant homozygous

Multiple Choice Question Gene expression is the production of an RNA molecule or protein. a lipid or nucleic acid. a carbohydrate or protein. a protein or DNA molecule.

A lily (a monocot) would have vascular tissue arranged in a ring. flower parts in threes. two cotyledons. netted leaf veins.

A(n) is the DNA of a bacteriophage virus that is inserted into the host chromosome during lysogenic infection. - capsule - polysome - prophage - envelope

Hide Question 8 of 10 A deoxyribose linked to a thymine is referred to as a: purine nucleotide. nucleotide. purine nucleoside. nucleotide or purine nucleotide. nucleoside.

What is the meaning of the prefix in the term triceps brachii? Multiple Choice laceration avulsion fracture muscle three

The genes present on the chromosome are the and the actual bodily traits and characteristics that we see are the

Select the correct name Elastic Cartilage Connective Tissue of this tissue, and [Select] in this tissue.

Select the correct name of this tissue, and what is the name of the cell at the pointer.

What level of protein structure is shown in the picture? Quaternary Primary Tertiary Secondary

5'-GAATCC-3' 3'-CTTAGG-5' 5'-CCTTCC-3' 3'-GCAAGG-5' 5'-AGGTCC-3' 3'-TCCAGG-5' 5'-GGATCE-3' 3'-CCTAGG: 5'

Dermis 1. : Subcutaneous fatty layer Hypodermis Epidermis 2. : Contains sensory receptors, blood vessels, and nerves 3. : Protective outer layer

The primary dye in the Gram stain is: - Gram's iodine - crystal violet - ethyl alcohol (ethanol) - safranin

The reverse of endocytosis is

The two main categories of square square are endocytosis and exocytosis.

Which of the following is a metabolic function of skin? elimination of nitrogenous wastes cutaneous sensation body temperature regulation synthesis of a vitamin D precursor

Question 5 1 pts Indicate the way in which alcohol affects bacterial cells. It coagulates proteins. Oxidation It causes mutations. It disrupts peptidoglycan.

Which radioisotope is used to treat leukemia and lymphomas? A) Xenon-133 B) Phosphorus-32 C) Iridium-192 D) Thallium-201

Which type of cell or cellular structure is not found in the epidermis? pain receptors dendritic cells keratinocytes melanocytes

HW: Chapter 7 (i) Label the components in this image showing transcription.

Question 18 1 pts You are scrolling through a news app and stop to read an article that says flu season is here and that it will be particularly bad this year. After reading the article, you immediately head out to buy a pack of disposable masks and some hand sanitizer. The particularly bad flu season has a behavior-altering abative effect on having masks and hand sanitizer. behavior-altering evocative effect on having masks and hand sanitizer. value-altering abolishing effect on having masks and hand sanitizer. value-altering establishing effect on having masks and hand sanitizer.

What contains about 6.4 billion base pairs and about 20,000 genes? O The human genome O A nucleotide O A transfer RNA molecule O A eukaryotic chromosome

Giving a test to a group of students, the table below summarizes the grade earned by gender. A B C Total ----------------------- Male 12 9 16 37 Female 10 6 13 29 Total 22 15 29 66 If one student is chosen at random, find the probability that the student is female given the student earned grade A. Round your answer to four decimal places.

The roots of a plant reach down 3 3/4 inches below ground. How many inches is the plant above the ground?

The structure that easily distinguishes a plant cell from an animal cell is Multiple Choice mitochondria. the nucleus. the plasma membrane the Golgi apparatus. chloroplasts.

The term tonicity refers to the effect of a solution on the translocation of water into or out of cells.

Identify and name the parent in each of the following compounds:

The flow of blood into the heart Blood from the systemic circuit enters the heart and flows into the before being pumped into the lungs Multiple Choice left atrium, and then right ventricle right atrium, and then right ventricle left atrium, and then right atrium right atrium, and then left atrium

identify the main procedures involved in a western blot and the correct order in which they are performed.

Theoretically, a protein could assume a virtually infinite number of configurations and conformations. Which of the following features of proteins drastically limit the actual number of available conformations and configurations? (Select all that apply.) - Only L-amino acids (except for glycine) are used in proteins. - The tertiary structure of a protein is controlled by hydrophobic interactions between nonpolar amino acid residues. - Although any one of 20 amino acids is possible at each position, only one is used. - The Ramachandran angles φ and ψ are limited in their values due to steric restrictions. - The partial double bond character of the α-C-N bond in the peptide group limits the conformations of the peptide group.

The folds of the inner mitochondrial membrane are called.

Question 1 0.25 pts What can put pressure on other faults and trigger them to become active? Volcanic eruptions Landslides Tsunamis Earthquakes

(6) Organic compound consisting of a fivecarbon sugar, a phosphate group and a nitrogenous base (7) The basic functional units of the human body (8) The term that describes reactions that result in input of energy to synthesize large molecules in the body (9) Formation of glycogen from glucose (10) Breakdown of glycogen to release glucose-1-phosphate

Which of the following are considered to be bonebuilding cells? fibroblasts osteoclasts osteoblasts osteocyte

Cilia are composed of microtubules. How are microtubules different from the other cytoskeletal filaments? Microtubules are large bundles composed of the protein myosin. They are generally 15 nanometers in size. Microtubules are hollow tubes with a diameter of 25 nanometers and are composed of the protein tubulin. Microtubules are the smallest cytoskeletal element with a diameter of 5 nanometers, and they are composed of the protein actin. Microtubules vary in size from 9 to 11 nanometers and have different protein compositions depending upon the type of cell.

Multiple Choice Question Which principle of relative dating can be used to determine when the minerals associated with the granite intrusion in the diagram formed? Cross-cutting relations Superposition Original horizontality Inclusions

An average of many different studies of handedness indicate that in a random sample of adults, 14 percent of men are left-handed and 6 percent of women are left-handed. (Assume the rest are right-handed.) Suppose you have a sample of 250 women and 200 men, in which the numbers of left-handed and right-handed people reflect the average percentages. Make a two-way table that shows the distribution you would find. Fill out the two-way table below. Women Men -------------------------- Right-Handed Left-Handed (Simplify your answers.)

Superior vena cava

Question 1 How many deer are heterozygous for both tail length and spots genes? 4 6 5 3

Which of the following information provides the strongest evidence to support the evolutionary relatedness between fungi and animals? Multiple Choice Both are heterotrophic. They both possess a cell wall made of chitin. Some fungi and animals have flagella. Molecular data shows a similarity in DNA/RNA base sequences.

Which of the following will result when 1% to 5% agar is added to nutrient broth, boiled, and cooled?

By observing the scattering of alpha particles from gold foil, Rutherford determined that atoms have: a dense positively charged core. positive charges distributed approximately evenly throughout the atom. wave-like particles of very small dimensions. different isotopes having different masses. none of these. Question 5 (1 point) How many protons, neutrons, and electrons are in a silver atom with a mass number of 108 ? 13 61 protons, 108 neutrons, 61 electrons 47 protons, 108 neutrons, 47 electrons 61 protons, 47 neutrons, 47 electrons 47 protons, 61 neutrons, 47 electrons 47 protons, 47 neutrons 61 electrons

Part A In which quadrant of the abdominopelvic cavity is the stomach located? left lower quadrant left upper quadrant right upper quadrant right lower quadrant

All of the following are lipids except . cholesterol triglyceride phospholipid wax starch

In the knee joint, the femur articulates with the □ and the patella.

QUESTION 10/32 The plasma membrane is *NOT* part of the endomembrane system. True False

An investigator wants to determine if ear bud use is a causative agent for hearing loss. She examines a group of people with hearing loss and a group of people with no hearing loss and asks them both about their history of ear bud use. In this study, ear bud use is the: Outcome (dependent) variable B. Hypothesis C. Descriptor D. Predictor (independent) variable

MATCHING (Each worth 1/2 point) Use the answer choices in the box on the right for this portion of the quiz. Each choice will only be used once but not all choices will be used. Choose the BEST answer. 1. The amount of blood in each ventricle at the end of ventricular diastole 2. The amount of blood remaining in each ventricle at the end of ventricular systole 3. The percent of the EDV represented by SV 4. This equals HR * SV 5. The amount of blood pumped out of each ventricle during a single contraction 6. This is the degree of stretching experienced by ventricular muscle cells during ventricular diastole 7. This is the force produced during a contraction at a given preload 8. This is the normal value for SV Cardiac Function Calculations: Show your work (including the equations that you use). 9. What is the average value for cardiac output at rest? L/min. Do you think CO would change with exercise? How? Why?

- Growth rate slows following infancy. - MyPlate.gov is a food guidance system that offers an Internet-based tool to provide clients with individualized recommendations for adequate nutrition. Children require the same food groups as adults, but in smaller serving sizes. - Energy needs and appetite vary with the child's activity level and growth rate. - Generally, nutrient needs increase with age. - Attitudes toward food and general food habits are established by 5 years of age. - Increasing the variety and texture of foods helps the child develop good eating habits. - Foods like hot dogs, popcorn, peanuts, grapes, raw carrots, celery, peanut butter, tough meat, and candy can cause choking or aspiration. - Inclusion in family mealtime is important for social development. - Group eating becomes a significant means of socialization for school-age children. TODDLERS: 1 TO 3 YEARS OLD NUTRITION GUIDELINES - Toddlers generally grow 2 to 3 inches in height and gain approximately 5 to 6 lb/year. - Limit 100% juice to 4 to 6 oz a day. - The 1- to 2-year-old child requires whole cow's milk to provide adequate fat for the still-growing brain. - Food serving size is 1 tbsp for each year of age. - Exposure to a new food might be needed 15 to 20 times before the child develops an acceptance of it. - If there is a negative family history for allergies, cow's milk, chocolate, citrus fruits, egg white, seafood, and nut butters can be gradually introduced while monitoring the child for reactions. - Toddlers prefer finger foods because of their increasing autonomy. They prefer plain foods to mixtures, but usually like macaroni and cheese, spaghetti, and pizza. - Regular meal times and nutritious snacks best meet nutrient needs. - Snacks or desserts that are high in sugar, fat, or sodium should be avoided. - Children are at an increased risk for choking until 4 years of age. - Avoid foods that are potential choking hazards. Always provide adult supervision during snack and mealtimes. During food preparation, cut small, bite-sized pieces that are easy to swallow to prevent choking. Do not allow the child to engage in drinking or eating during play activities or while lying down.

Which epithelial type is highlighted? simple squamous epithelium simple cuboidal epithelium simple columnar epithelium pseudostratified columnar epithelium

Interactive Assignments: Chapter 7 17 Select the correct word from each drop-down box to complete the statement. The streptococcus causes infections in the throat. First blank - bacterium Second blank - bacterial

Drag the tiles to the correct boxes to complete the pairs. Match the digestive organs with their functions. pancreas small intestine mouth large intestine liver stomach moistening and mechanical digestion of food aiding in chemical digestion of fats chemical digestion and absorption of nutrients mechanical and chemical digestion of food with acids and enzymes absorption of water and compaction of indigestible material for elimination secreting the enzymes lipase, trypsin, and amylase Reset Next

The infectious agents that cause Rocky Mountain spotted fever and epidemic typhus are transmitted to the human body via vector such as a tick. What are these infectious agents? O Ehrlichia O Rickettsia O Chlamydiae O Viruses

An elevated ridge of the cortex is called a fissure sulcus furrow gyrus

Lecture Notes Handout: Skeletal Muscle Properties (Part II) Tendon and Ligament Properties Overview 1. Tendon connect to 2. Ligaments connect to

(a) Let t be the time (in days) since the beginning of the study, and let y be the number of bacteria at time t. Write a formula relating y to t. Use exact expressions to fill in the missing parts of the formula. Do not use approximations. y=20 e^(ln 13/52 t) (b) How many bacteria are there 17 days after the beginning of the study? Do not round any intermediate computations, and round your answer to the nearest whole number. bacteria

A primary deficiency occurs when the body is unable to use the nutrients consumed efficiently.

Which epithelial tissue is found in the kidney tubules, ducts of small glands, ovary surface, and thyroid follicles? Simple columnar Stratified squamous Transitional Pseudostratified columnar Simple cuboidal

The first stage of the diploid generation is the zygote gametophyte gamete sporophyte

All viruses are composed of at least nucleic acid covered by a coating comprised of

A renal corpuscle is a ?, whereas a renal tubule is a ?. A special blood cell in the kidneys; tubule that leads from the kidneys to the bladder (B) glandular structure that regulates blood pressure; blood vessel that regulates the flow of blood into the glomerulus (C) storage area for urine; tubule that carries urine from the urinary bladder outside (D) structure composed of connective tissue; blood vessel (E) cluster of blood capillaries and glomerular capsule; highly coiled tubule exiting the glomerular capsule

Which of the following is described as any decrease in the oxygen-carrying ability of the red blood cells? tachycardia syncope dyspnea anemia

Which muscle type, through involuntary control, helps to expel urine from the bladder and feces from the digestive tract? Multiple Choice Skeletal muscle Cardiac muscle Smooth muscle

Question 10 1 pts The value of evidence is directly affected by what happens immediately following the crime. Evidence in an unprotected crime scene will degrade, diminish, or disappear over time unless collected and preserved. occurs when items touch one another? contamination cross contamination exposure decontamination Question 11 1 pts As it relates to evidence - extremely small items such as hair or fibers, are a subset of direct evidence called? Trace evidence

What is the oxidation number for alkali metal ions?

Rank the following processes by the amount of adenosine triphosphate (ATP) produced per substrate, from most ATP to least. Krebs cycle (from one Acetyl-CoA) Fermentation (from one pyruvate) Glycolysis (from one glucose) Electron Transport Chain

Question 18 1 pts Please match the mitotic stage to what is occurring during that stage Interphase [Choose] Prophase [ Choose ] Metaphase [Choose] Anaphase [Choose] Telophase [Choose]

Which of the following is a problem created when a cell becomes too large? DNA is not able to coordinate activities of a very large cell properly.

A supernova called SN 1987A was visible to the naked eye in the night sky in . It occurred in the Large Magellanic Cloud.

Adhesins are molecules on the surface of some microorganisms allowing them to bind to receptor sites on host cells before they infect them. This is considered a of a pathogen. Infection factor Gateway Virulence factor

How many ATP molecules are produced from the complete catabolism of 4 molecules of glycerol, HOCH2 CH(OH) CH2 OH? ATP molecule(s)

In the nervous system, which of the following is true of neurons and the neurotransmitters they secrete? Most neurons secrete many neurotransmitters at the same time. At any given time, a neuron is receiving a mixture of messages from the neurotransmitters. Neurotransmitters are located in the nuclei of the neurons. Neurotransmitters in neurons cannot be both excitatory and inhibitory.

B Canvas Unit 3 Canvas Quiz - Requires Respondus LockDown Browser Started: Sep 20 at 12:35pm Quiz Instructions Question 6 The cell structures responsible for membrane transport are proteins. carbohydrates. steroids. phospholipids. Quiz saved at 12

Movement that brings the foot and toes farther from the shin is of the ankle joint. Multiple Choice rotation dorsiflexion hyperextension plantar flexion

An adult with a healthy sleep cycle is most likely to enter REM sleep in which of the following ways? (A) immediately after falling asleep (B) after the dream stage is completed (C) after cycling through the NREM sleep stages (D) soon after falling asleep and then remain there for the majority of the night

If you think of a cell as a factory that makes proteins and ships them out, which function would the nucleus perform? Power plant-provides energy to the factory Workfloor - space where work in the factory is performed Management - makes decisions about what product (protein) to make Security fence with gates - controls whats get in and out Assembly line workers - makes product (protein)

m APR material: Cellular metabolism and transport across membranes Previous Page Next Page Page 35 of 49 Question 35 (1 point) Listen How is a polypeptide chain synthesized? a) Amino acids are bound together in a long specified sequence. b) MRNA that is bound to an amino acid, such as tyrosine, associates with a ribosomal subunit. c) Ribosomal subunits bind to a long strand of tRNA molecules. d) Nucleotides are bound together in a long specified sequence. Previous Page Next Page Page 35 of 49 9 MacBook Air

In DNA replication, pairs with thymine, and cytosine pairs with Multiple Choice purine, alanine adenine; guanine cytosine; thymine None of the answer choices are correct. guanine; adenine

Cal studies the effects of a new vaccine and designs an experiment with two groups. Group A gets the vaccine and Group B gets a placebo shot. Which of the following would be the null hypothesis in Cal's experiment? Group A and Group B are both less likely to contract the virus. Group A and Group B are equally likely to contract the virus. Group B is less likely to contract the virus compared to Group A. Group A is less likely to contract the virus compared to Group B.

14) Which of the following is true of natural selection? A) It requires genetic variation. B) It involves differential reproductive success. C) It requires genetic variation, results in descent with modification, and involves differential reproductive success. D) It results in descent with modification.

5) Why does ice float in liquid water? A) The crystalline lattice of ice causes it to be denser than liquid water. B) Stable hydrogen bonds keep water molecules of ice farther apart than water molecules of liquid wate C) The high surface tension of liquid water keeps the ice on top. D) The ionic bonds between the molecules in ice prevent the ice from sinking.

Which correctly lists the three parts of soil that are classified by their particle size? bedrock, humus, and clay clay, bedrock, and silt humus, sand, and clay sand, clay, and silt

From the following list, select the function that is NOT associated with the skin. temperature regulation protection against microbes synthesis of vitamin E protective barrier against water loss sensory input

2. What element is the building block for most biological molecules? What makes it so versatile?

Question 17 (1 point) Professor Cook is lecturing on the importance of the myelin sheath. He told the class that - a) myelin is the only structure that can prevent action potentials from traveling the wrong direction. b) the fatty nature of the myelin speeds up the action potential down the length of the axon c) the fatty nature of myelin provides storage for key nutrients for the neuron d) myelin increases the strength of the action potential

QUESTION 14 Collagen gives and tensile strength to the skin. Water resistance UV protection Color Elasticity Structure

Mucous membrane Serous membrane Synovial membrane Consists of a layer of epithelial cells, a basement membrane and a lamina propria Consists of a mesothelium, a basement membrane and loose connective tissue Consists of only connective tissue

Biology

New Questions