Biology Homework Questions & Answers Archive

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

Which of the following forces does not help lymph to flow? a. Arterial pulsations squeezing lymphatic vessels b. The thoracic pump c. Rhythmic contractions of lymphatic vessels d. The lymphatic node pump e. The skeletal muscle pump

Drag and drop to match the best description of tertiary structure found in each type of biomolecule. None formally recognized Folding into specific shapes stabilized by hydrogen bonds Sequences of sugars joined by glycosidic linkages. Supercoiling (twisting on itself, occurs in some cases) α-helices and β-pleated sheets stabilized by hydrogen bonds. Folding into specific shapes stabilized by ionic bonds, hydrogen bonds, S-S bonds, and/or hydrophobic interactions. Several protein subunits assembled into a single unit stabilized by ionic bonds, hydrogen bonds, S-S bonds, and/or hydrophobic interactions.

Select the microbial characteristics that can be observed through staining and microscopy. morphology gram reaction arrangement size

The most important biological contribution of carbon dioxide to the atmosphere is through a) microbial decomposition of dead material b) burning organic material c) respiration from the lungs

Plants must open their to let in the carbon dioxide that is required for photosynthesis. stroma stomata mesophyll

Where does the urea produced in the urea cycle get eliminated from the body?

Select the correct answer from each drop-down menu Complete the following sentences to correctly explain how life could have formed on Earth. According to one hypothesis, life on Earth emerged from amino acids in the presence of large amounts of gases seeping from deep-ocean vents. Another hypothesis, called the primordial soup, suggests that the formation of life was due to the effects of in Earth's atmosphere.

A nuclear pore is best described as an opening in the that permits the passage of molecules into and out of the nucleus. nuclear envelope plasma membrane endoplasmic reticulum nucleolus

The double membrane that separates the nucleus from the cytoplasm is known as the

Blood coagulation is a process that requires clotting factors, platelets and vitamin - calcium; K calcium; D sodium; B potassium; C

Question 18 During the process of fermentation: Yeast converts the water in grape juice into alcohol Yeast converts the excess alcohol in wine into sugar and acids Yeast converts the acid in grape juice into alcohol Yeast converts the sugar in grape juice into alcohol

hemothorax

If the plasma of a blood sample contains the anti-B and not the anti-A antibodies, the ABO blood type is B A 0 AB

What unit of measure is most appropriate for expressing the size of bacteria? Multiple Choice micrometer nanometer milimeter picometer

The mineral chalcocite, Cu2S, has been mined for centuries and is one of the most profitable copper ores because of its high copper content. How many grams of chalcocite must be mined to obtain 312 g of pure Cu? Express your answer in grams to 3 significant figures. mass of chalcocite = g

What percentage of the body weight is made of oxygen? Less than 50% More than 50%

What genus causes malaria? Plasmodium Trichomonas Entamoeba Trypanosoma Toxoplasma

Multiple Choice Question Which of the following is NOT an example of nonmaterial culture? - classical music - a college education - the English language - a car

Evaluate the limit as x approaches 0 of (x^100 + 7x^2) / (x^50 - 4x^2)

When a man observed a sobriety checkpoint conducted by a police department, he saw 667 drivers were screened and 4 were arrested for driving while intoxicated. Based on those results, we can estimate that P(W)=0.00600, where W denotes the event of screening a driver and getting someone who is intoxicated. What does P(W̅) denote, and what is its value? What does P(W̅) represent? A. P(W̅) denotes the probability of a driver passing through the sobriety checkpoint. B. P(W̅) denotes the probability of screening a driver and finding that he or she is intoxicated. C. P(W̅) denotes the probability of driver being intoxicated. D. P(W̅) denotes the probability of screening a driver and finding that he or she is not intoxicated. P(W̅)= (Round to five decimal places as needed.)

The formula of copper (I) sulfide is: Cu3(SO3)2 Cu2S CuS Cu2SO3 None of these Cu2(SO3)3 CuS2 CuSO3

What does tissue tropism refer to? The specificity of the virus for certain types of cell within the tissue of the host

ACTIVIDAD PREVIA: Indique el nombre de cada componente destacado con señaladores. Observe las formas de los núcleos en 1, 2 y 3 , e indique qué forma deberías tener esas células Emplee este espacio para desarrollar la actividad

Question 7 ( 0.52 points) Humoral immunity is brought about by antibodies, which are produced by plasma cells 1) True 2) False

Information about movement, posture, and orientation is provided via the senses. kinesthetic vestibular tactile olfactory

Name the oily component of the secretion of the sebaceous glands. Ammonia Glucose Sodium chloride Water Sebum Need help? Review these concept resources.

Multiple Choice Question Which is the main role of proteins in cells? Long term energy molecules. Contain genetic information. Structural and functional molecules. Quick energy source for the cell. Need help? Review these concept resources.

Which of the following organelles sorts, cuts, splices, and packages newly formed proteins into membrane-bound vesicles? Multiple Choice Mitochondrion Golgi complex Nucleolus Smooth ER Rough ER

Consider the different types of metabolic pathways. Which of the following is a metabolic pathway that involves the same set of reactions repeated on increasingly smaller substrates? Select the single best answer. cyclic chain spiral linear Which of the following is a spiral pathway? Select the single best answer. glycolysis pyruvate oxidation the citric acid cycle B-oxidation of fatty acids gluconeogenesis

The non-dividing phase of the cell cycle

Where are cartilaginous joints commonly found?

Which of the following are energy storage carbohydrates? (check all that apply) Triglyceride Starch Phospholipid Chitin Cellulose Glycogen

A muscle that opposes, or reverses, a particular movement is a (n) antagonist synergist fixator agonist (prime mover)

During anaphase, what changes take place with chromatids? (1 point) The chromatids are pulled towards different centromeres. The chromatids are pulled towards different centrioles. The chromatids are pulled towards the same centriole. The chromatids are pulled towards the same centromere.

Match the representative example of each fungal group to the characteristics of that group. 1. Chytrids Primitive fungi which have flagellated spores. 2. Ciyptococcus neoformans 3. Penicillium 4. Rhizopus Fungi with incompletely septate hyphae that commonly have fleshy fruiting bodies. The hyphae of these fungi are usually nonseptate but if they are septate, the septa are complete. These fungi have hyphae with porous septa. Primitive fungi which have flagellated spores.

Matching Question Identify the components of the portion of the plasma membrane depicted in this illustration. Peripheral protein Glycoprotein Phospholipid

Food Chain - Is a representation which shows the flow of energy from one organism to another - Includes the following levels: - producers - primary consumers - secondary consumers - tertiary consumers - predators - decomposers and detritivores

onsider a protein that is targeted to be excreted to the outside of the plasma membrane. There would this protein be located in the Golgi? in the lumen (inside) of the Golgi embedded as an integral membrane protein in the Golgi membrane outside the Golgi as a peripheral membrane protein

Organisms that feed on dead organisms for nutrients are called Multiple Choice parasites. phototrophs. saprobes. autotrophs. lithoautotrophs.

All of the following could find a location in or on body tissues suitable for growth except Multiple Choice anaerobes psychrophiles. mesophiles. facultative anaerobes. capnophiles.

QUESTION 15 A person just ate a bag of salty chips causing blood sodium ( Na+ ) levels to rise. What must the body do to return to homeostasis? release a hormone (aldosterone) which causes the kidneys to retain sodium release a hormone (ANF) which causes the kidneys to excrete sodium no change to the blood sodium levels

A nurse educator is teaching a client about a healthy diet. What information would be included to reduce the risk of hypertension? "Eat a diet high in fruits and vegetables." "Put away the salt shaker and eat low-salt foods." "Remember to drink 8 to 10 glasses of water a day." "It is important to have increased fats in your diet."

Question 41 (2 points) What layer of the epidermis is marked in this picture (with "LAYER?")? A) Stratum corneum B) Stratum granulosum C) Stratum basale D) Stratum spinsosum

In the scientific method experiment, pillbugs were added to a choice chamber with two sides connected by a channel that allowed the pillbugs to move to either side. One side of the container was lined with sand (no nutrients) and the other side was lined with cornstarch which contained nutrients. Based on your understanding of the experiment and its variables, select the INCORRECT statement below: A controlled experiment allows comparison between a control group and a test (experimental) group that has been exposed to an experimental factor (the variable). Experiments are typically conducted with one types of variables such as an independent, dependent, or standardized variable. A controlled experiment is often conducted in multiple trials. A controlled experiment allows scientists to test hypotheses and to draw conclusions based on reproducible results.

Birth Weights (grams) 4000, 3300, 3400, 3100, 3600, 1500, 3500, 3200, 2800, 2900, 2700, 3700, 2900, 3800, 3200, 2700, 3300, 3700, 2400, 3500, 3500, 3400, 1800, 3500, 3100, 4000, 2600, 1600, 1800, 2400, 3300, 2900, 2400, 3700, 3600, 3700, 2700, 2800, 4200, 3600, 3400, 3600, 2800, 4300, 3300, 2800, 3900, 2600, 2600, 3400. Find the mean and median and round to one decimal place

Question 37 The pharynx assists in moistening and humidifying inhaled air? (A) True (B) False Question 38

Of these three ecosystem components, which will have the least amount of biomass?

Rigid bacteria with a helical cell shape are called Multiple Choice coccobacilli spirilla vibrios spirochetes

Question 2 1 pts Who was the first person to isolate microbes from disease victims of anthrax in the laboratory and lay the foundation for the discovery of many pathogens? Louis Pasteur Ignaz Spallazani Robert Koch Franscisco Redi

The alpha helix and beta pleated sheet are examples of protein A primary structure. (B) quaternary structure. (C) tertiary structure. (D) gamma structure. (E) secondary structure.

The amount of original solar energy moving from plants to animals that eat plants is: 10%. 5% 1%. 2%.

Globally, most human adults are lactose intolerant. People with lactose intolerance produce insufficient amounts of the enzyme lactase

Tissue Structure and Function: General Review 1. Define tissue: 2. Use the key to identify the major tissue types described below. Key: connective epithelial muscle nervous 1. lines body cavities and covers the body's external surface 2. pumps blood, flushes urine out of the body, allows one to swing a bat 3. transmits electrical signals 4. anchors and packages body organs 5. cells may absorb, protect, or form a filtering membrane 6. forms nerves and the brain 7. major function is to contract 8. the most widespread tissue in the body Epithelial Tissue 3. How are epithelial tissues classified? 4. How is the function of an epithelium reflected in its arrangement? 5. Using the key, choose the type of epithelial tissue that best fits each description. Key: pseudostratified ciliated columnar simple columnar simple cuboidal simple squamous 1. best suited for areas subject to friction 2. most suited for rapid diffusion 3. tubules of the kidney 4. lines much of the respiratory tract 5. stretches 6. lines the small and large intestines stratified squamous transitional

All of the following are found in some or all protozoa except (A) cell walls. (B) motility. (C) ectoplasm and endoplasm. (D) formation of a cyst stage. (E) heterotrophic nutrition.

A scientist grew Chlorella, a single-celled photosynthetic algae, for 3 weeks in a laboratory culture. The culture medium contained dissolved carbon dioxide and nitrogen compounds, but it did not contain phosphates. At the beginning and end of the 3 -week period, the scientist measured the rate of synthesis for certain biological molecules. Which of the following graphs shows the most likely results of the experiment? Choose 1 answer: (A) (B)

Multiple Choice Question This image shows animal cells growing in a in a tissue culture dish. bilayer plaque monolayer bird embryo

All of the following joints are syndesmosis type joints, EXCEPT: left forearm left lower limb right lower limb sutures of the skull right forearm

Why are ducks important to freshwater biomes? They clean the water surface. They spread plant seeds. They provide food for plants. They are not important.

Describe ATP, including its structure and its function.

4. El destino del piruvato (producto de la glicólisis) en un ambiente aerobio es

Define stem cells and their function. Define atrophy, hypertrophy, hyperplasia, and necrosis.

Question 67 A tendon is a band of connective tissue that attaches and stabilizes one bone to another within a joint. (A) False (B) True Question 68

Which statement is true of dendrites? A They transmit information to other neurons and/or cells B They are the main input regions of the neurons C They support the immune system of the nervous system D Most neurons have only one dendrite

Question 23 1 Point Which statement is true of aerobic and anaerobic cellular respiration? (A) Aerobic respiration produces more adenosine triphosphate (ATP) molecules compared to anaerobic respiration (B) Anaerobic respiration utilizes oxygen and glucose to make adenosine triphosphate (ATP) (C) Anaerobic respiration produces no waste products (D) Cells can only perform aerobic respiration to make adenosine triphosphate (ATP)

Rank the following base pairs according to their stability. Rank from most to least stable. To rank items as equivalent, overlap them.

What is the primary function of the hypothalamus? It processes auditory information. It regulates body temperature and hunger. It relays sensory information to the cerebellum. It coordinates motor movements.

Which of the following connective tissues functions to transport nutrients to the body's tissues? Multiple Choice Reticular tissue Blood Adipose tissue Nervous tissue Dense regular connective tissue

List the events below in order (from beginning to end) to show how Gene Therapy works within your body. - In the laboratory, a virus is altered so that it cannot reproduce - A gene is inserted into the virus - Cells are removed from patient - The altered virus is mixed with cells from the patient - The cells from the patient become genetically altered - The altered cells are injected into the patient - The genetically altered cells produce the desired proteins or hormones

Prepare journal entries to record each of the following sales transactions of a merchandising company. The company uses a perpetual inventory system and the gross method. April 1 Sold merchandise for 6,800, with credit terms n / 30; invoice dated April 1. The cost of the merchandise is 4,080. April 4 The customer in the April 1 sale returned 760 of merchandise for full credit. The merchandise, which had cost 456, is returned to inventory. April 8 Sold merchandise for 2,900, with credit terms of 1 / 10, n / 30; invoice dated April 8. Cost of the merchandise April 11 is 2,030.

Examine and interpret the graph regarding the effects of temperature on oxyhemoglobin dissociation by clicking the box(es) that apply. Effect of temperature Check All That Apply As body temperature increases, the percent saturation of hemoglobin decreases. As body temperature decreases, there is a "shift right" in the oxygen dissociation curve. When a person is exercising, there is a "shift left" in the oxygen dissociation curve. When a person is exercising, percent saturation of hemoglobin increases. When a person has hypothermia, percent saturation of hemoglobin increases. At a person's normal body temperature, there is more oxygen bound to hemoglobin compared to at higher body temperature.

Part G What is the name of the process by which the cytoplasm divides in two? Segregation Microtubule shortening Cytokinesis Cytoplasmic streaming Hints Clear all Check answer

Great. The flame kills all the microbes and sterilizes the wire loop. Why is this important do before working with the chicken farm sample?

Which structure is highlighted? dense irregular connective tissue epithelium basement membrane nucleus

mylab.pearson.com Homework 3 Software Downloads I (Fall 2024) Question Part A Select the correct statement regarding epithelia. Pseudostratified epithelia consist of at least two layers of cells stacked on top of one another. Stratified epithelia are tall, narrow cells. Stratified epithelia are present where protection from abrasion is important. Simple epithelia form impermeable barriers.

Relative gene expression 1.5 1.0 0.5 0.0 -0.5 H1H2 H1H3 H1H4 H1H5 Genotype

Based on the results of the streaking method and previously inoculated plate, how can you tell that the colony was successfully isolated? a) The bacterial colony is mixed with other colonies on the surface of the agar plate with nonuniform shape and color b) It cannot be determined just by looking at the plate c) The bacterial colony is within the cluster of other colonies on the surface of the agar plate with similar shapes and colors d) The bacterial colony is deposited few millimetres away from other colonies on the surface of the agar plate with uniform, clearly defined shape and color

Please refer to the passage to help you answer the problem. How does random mating keep a population in HardyWeinberg Equilibrium? With random mating, males choose the females BEST suited to the environment. With random mating, female choose the males BEST suited to the environment. With random mating, every individual has an equal chance of passing on their genes.

What is the relationship of nucleotides and DNA?

Stretch receptors in the bladder will normally trigger a signal to the spinal cord when the bladder is holding around of urine. 200 ml 400 ml 50 ml 600 ml

The managerial function of involves monitoring performance, comparing it to goals, and taking corrective action when needed. - organizing - leading - planning - controlling

Explain how an individual's phenotype may be determined by multiple genes that interact with one another and with the environment. Tongue rolling was thought to be an example of a human trait controlled by a single gene, but we now know that identical twins, who share 100% of their DNA sequences, will only share the tongue-rolling trait 70% of the time. This indicates that tongue rolling may also be controlled by the environment.

Which of the Following is NOT True of the Bones of the Hand? Which of the following is NOT true of the bones of the hand? Multiple Choice The carpals are arranged in 2 rows of 4 bones each. The hand contains a single metacarpal for each digit. All 5 digits of the hand contain 3 phalanges. All of these are true of the bones of the hand. The metacarpals articulate with the proximal phalanges.

Why would you choose rats to detect landmines? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a They are highly social and intelligent and therefore easy to train. b They are extremely sensitive to smell and have more genetic material dedicated to olfaction than any other mammal. c They can be trained to communicate with a human trainer when it smells a target. d All of the above

Question 5.31 Homework · Unanswered · Due Sep 16th, 1:15 PM Which of the following is not one of the ossicles? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Malleus b Incus c Patella d Stapes

For a specific gene, transcription takes place Only on the coding strand On both the template and coding strands Only on the template strand

Some anticancer and antiviral treatments include the use of nucleotide analogs (similar structure to the four found in DNA). These analogs, such as pentostatin (image below), compete with DNA nucleotides and incorporate into the DNA molecule and halting/preventing DNA replication from occurring. Which replisome enzyme is most likely affected? A) Ligase B) DNA Polymerase C) Helicase D) Topoisomerase

Why is grafting sometimes used in asexual reproduction of plants? to make sure that the plant is not an exact genetic copy of the parent plant to make it harder to grow a new plant to make it take a lot longer and become more expensive to combine the desirable characteristics of two or more plants

Inflammation is defined as objective evidence of a disease a localized response to an injury or destruction of tissues that is characterized by heat, redness, swelling, and pain invasion of the body by pathogenic organisms area of tissue death caused by interruption of blood supply

Respecto a los Suelos Trumaos de origen volcánico indique lo que NO corresponde a.- Alto nivel de Materia Orgánica b. Presenta niveles de bajo pH c.- Inmovilización del Fósforo d.- Alta presencia de Silicio que inmoviliza el Fósforo e.- Suelos con buen drenaje

血糖濃度の調節について,次の問いに答えなさい。【知・技】（2点×4）（1）糖の一種であるグルコースは，血液によって全身の細胞に運ばれる。血液中にふくまれるグルコースを何というか。（2）私達の体は環境の変化に合わせて，対応するしくみをもっている。体内環境の調節に，重要なはたらきを担っている物質は何か。（3）食事をとった直後には、血糖濃度は一時的にやや上昇するが、すい臓から分泌される物質のはたらきにより血糖濃度が低下する。この物質は何か。（4）すい臓から（3）の分泌量が不足するなどして,慢性的に血糖濃度が高くなる病気のことを何というか。

Carries amino acids to the ribosomes Carries information from the nucleus to the cytoplasm Contains anticodons Located only in the cytoplasm Carries a complementary copy of a gene Short, singlestranded chain of nucleotides with occasional areas of intramolecular binding Contains codons tRNA (1/2) mRNA (2/2)

McGraw-Hill Education Unlike simple diffusion, facilitated diffusion requires energy expenditure by the cell. True or False True False

The Greek term for wrist is called: humerus. phalanx. carpus. clavicle.

COVID-19 Myocarditis COVID-19 Myocarditis The above image is from the paper on COVID19's impact on myocardial cells. All of the following are true, except: This is compound microscopy. This is stained to increase contrast. This is transmission microscopy. This was focused with magnets.

Which of the following is defined as organs or tissues in the body that create chemicals that control many bodily functions? Multiple Choice dendrites pons glands synapses

Which of the following events does not happen during endochondral ossification? Secondary ossification centers develop. Osteoblasts replace the calcified cartilage with early spongy bone. Mesenchymal cells differentiate into osteoblasts. Osteoclasts form a medullary cavity.

Place the steps of intramembranous ossification in the correct order starting with the earliest.

All of the following describe properties of water that enable it to support life, except... cohesion and adhesion water is nonpolar High specific heat water forms hydrogen bonds Ice floats!

Lei is trying to eat an adequate amount of fiber. Which lunch menu will best help her achieve this goal? a. chow mein, sautéed vegetables, herbal tea b. sushi, white rice, lettuce salad, orange juice c. jasmine rice, bok choy, steamed chicken, water d. soy burger, baked french fries, mango smoothie e. tofu and lentil soup, whole wheat bread, medium apple, hot green tea

Types of tissues resulting from cell differentiation

Rebecca wants to see if her kitten prefers new chicken flavored treats over her usual beef flavored treats. She puts 10 chicken treats in one bowl and 10 beef flavored treats in another bowl. She sees which treats her kitten eats first and repeats this experiment for 3 days. a. Independent Variable = b. Dependent Variable = c. Control =

Intra-alveolar pressure is the same as atmospheric pressure during which of the following events? Check all that apply. As air flows out during expiration At rest As air flows in during inspiration When there is no air movement

Which of the following statements is true of low-carbohydrate diets? A They're effective at reducing body fat. (B) They elevate blood pressure. (C) They often lead to diarrhea. (D) They induce ketosis. (E) They're a sound means of weight loss.

After experiencing considerable pain and having blood in his urine, Solomon visited his physician and was diagnosed with kidney stones. Kidney stones occur as a result of Multiple Choice - ammonia not being converted into urea efficiently in the liver - the lining of the kidneys becoming inflamed and causing cellular overgrowth - glucose and protein forming a ball-like complex

on 15 of 20 Which of the following INCORRECTLY matches the lipid with one of its primary functions in the body? cholesterol-used to synthesize steroid hormones triglycerides-a major component of cell membranes phospholipids-form the outer layer or "shell" of lipoproteins essential fatty acids—provide the required "parent" compounds needed to synthesize eicosanoids

10. Where does the peptide bond occur?

Where do you place an empty used Hemovac drain? Regular trash Laundry bin Under the sink in the patient room Red Biohazard bag

Question 10 The process of neurogenesis occurs when (A) neurons convert themselves to stem cells B neurons divide to create two new neurons C immature stem cells give birth to new neurons D neurons convert themselves to glial cells

92e^- 92p^+ 143n^0 write in notation

Leanora is a 22-year-old college student who plays on her school's soccer team. Her coach invited a registered dietitian nutritionist to talk to the team about sports nutrition. The RDN recommended minimizing trans fatty acids from processed and packaged foods, but she explained that some trans fats do occur naturally. What foods have naturally occurring trans fatty acids? Multiple Choice Pastries, pies, and cookies None of the choices contain naturally occurring trans fatty acids. Beef, whole milk, and butter Nuts, seeds, and avocados

What was the first life form to evolve? Photosynthetic organisms Plants Animals Prokaryotes

Select all that apply Which of the following options correctly describe fatty acids? Select all that apply. Double bonds in naturally occurring fatty acids usually have an E configuration. Saturated fatty acids contain no C=C double bonds in their chains. The melting point of a fatty acid decreases as the number of double bonds in the carbon chain increases. Naturally occurring fatty acids have carbon chains with 6-12 carbon atoms. All fatty acids contain a COOH group.

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