Biology Homework Questions & Answers Archive

Ajude o sapinho a dar seus pulos. Continue desenhando as setas e, depois, complete as frases. a) Veja, o sapo está pulando de 2 em 2 unidades. Faça-o chegar até o número 10. Você já viu que a adição pode ser representada na reta numérica deslocando-se para a direita. Além disso, pode-se usar a reta numérica para fazer a multiplicação. - Se ele der pulos, vai parar no número 10. - A multiplicação que representa essa ação é: vezes = - Se ele der 6 pulos, vai parar no número . Complete a reta numérica com mais esse pulo. b) Agora, ele está pulando de 4 em 4 unidades. Ajude-o a chegar até o número 12. - Se ele der pulos, vai parar no número 12. - A multiplicação que representa essa ação é: vezes = - Se ele der 4 pulos, vai parar no número Complete a reta numérica com mais esse pulo.

Match the appropriate description for each osteokinematic movement. Flexion Extension Abduction Adduction External rotation Internal rotation in general, movement in the frontal plane around the antero-posterioraxis toward the sagittal midline or toward the medial in general, movement in the frontal plane around the antero-posterior axis away from the sagittal midline or toward the lateral in general, movement in the transverse plane around a longitudinal axis toward the lateral, posterior, or away from midline in general, movement in the transverse plane around a longitudinal axis toward the medial, anterior, or toward midline in general, movement in the sagittal plane and around a mediolateral axis toward the anterior (the knee is the direction exception) in general, movement in the sagittal plane around the mediolateral axis toward the posterior (the knee is the direction exception)

Which blood samples show agglutination? A. Anti-A B. Anti-B C. Anti-D D. None

9. Simple sugar 10. Organelle where photosynthesis occurs 14. Plants need carbon to make food. 15. Source of energy for photosynthesis

SOL-5410v Biology sec. 50 / Module 02: Life's Origins When the carbon atoms of the glucose molecule are broken apart in glycolysis and the Krebs cycle, what is the result? (1 point) CO2 and ATP C6H12O6 and H2O FADH 2 and ATP CO2 and H2O

Isotopes of an element differ in their atomic number number of protons number of electrons number of neutrons number of protons and neutrons number of protons, neutrons, and electrons

is a condition that affects breathing and digestion due to thick mucus building up in the body, especially the lungs and digestive system. Cystic fibrosis Achondroplasia Tay-Sachs disease Phenylketonuria

In DNA, thymine always pairs with

The cornea is: A. an extension of the sclera. B. avascular. C. an area of the eye that has rich sensory innervation. D. all is applicable. 32 of 75

LO 7.2. What is the vagina? The muscle that controls the opening and closing of the anus The muscular tube that connects the uterus to the outside of the body The tube that connects the bladder to the outside of the body The muscular tube that connects the uterus to the inside of the body The bony structure that protects the spinal cord

8. There are 180 students in the eighth grade. Each of the students voted for his or her favorite sport. Two-thirds of the students voted for basketball. How many students voted for basketball? Answer:

We will be using Olympus compound microscopes in the laboratory. It is important that you be familiar with the operation of this microscope because you will be using it throughout the semester. Also, this microscope's operation is very similar to many other simple compound microscopes you may use in your future career. Fill in the table below

Blood pressure: The following table presents systolic blood pressure readings (in millimeters of mercury) for older adults (age 60+). Younger: 110, 101, 92, 121, 101, 121, 121, 120, 112, 109 Older: 120, 131, 157, 124, 155, 121, 122, 100, 140, 119 Part 1 of 3 (a) Find the sample standard deviation of the blood pressures for the younger adults. Round the answer to one The sample standard deviation of the blood pressures for the younger adults is .

Multiple Select Question Select all that apply Which of the following are characteristics of many types of dyes used to stain microorganisms? They have chromophore groups. They are able to bind cells only by covalent bonds. They do not have chromophore groups. They are able to bind cells by ionic, covalent, or hydrophobic bonds.

Premature babies may have trouble breathing because Their lungs are too small They forget to breathe Their voice box has not formed yet They do not produce enough surfactant

The produces that increases blood levels of sodium and water and decreases blood levels of potassium. - adrenal medulla; aldosterone - thyroid gland; thyroxine - hypothalamus; antidiuretic hormone - adrenal cortex; aldosterone - parathyroid; parathyroid hormone

The can be defined as a group of organisms potentially capable of successful reproduction.

Identify the muscle A) External intercostals B) External obliques C) Pectoralis major D) Rectus abdominis E) Scalene

9. Las proteínas globulares se caracterizan por ser: A) solubles con interior apolar y exterior polar. B) alargadas y mecánicamente muy resistentes. C) formadas solo por cadenas polipeptídicas. D) dependientes de coenzimas o cofactores.

A carbon atom and a hydrogen atom form what type of bond in a molecule?

The primary response of an organism to stimuli results in the organism

There are three important benefits to the warm up session: (1 point) flexibility is increased, the muscle is pushed to its full potential, and the chance of dizziness or fainting caused by the pooling of blood in the extremities is reduced. aids in the dissipation of waste products, reduces the potential for Delayed Onset of Muscle Soreness, and increases the heart rate gradually. flexibility is increased, the chance of dizziness or fainting caused by the pooling of blood in the extremities is reduced, and the heart rate is gradually increased. the heart rate is gradually increased from the resting pulse, the temperature within the muscles is increased, and the chance of muscle soreness and injury is reduced.

The dense body of protein and RNA inside the nucleus, which produces ribosomes, is called the square

If cells are placed in an isotonic solution, Multiple Choice water diffuses out of the cells, and the cells shrink in a process called hemolysis water diffuses out of the cells, and the cells shrink in a process called crenation water diffuses into the cells and the cells swell, and eventually burst in a process called hemolysis water diffuses into the cells and the cells swell, and eventually burst in a process called crenation water diffuses in and out of the cells at the same rate, and the cells remain the same size

To ensure that we are being accurate and random during population sampling, which individuals do we want to capture each time we conduct a recapture? A. specific individuals with no marks B. only the marked individuals C. only the females without marks D. both marked and unmarked, random individuals

Question 4 of 25 A salmon moves from a saltwater ocean to a freshwater river. What takes place in the salmon's cells as it moves? A. The cells lose water because of the movement of water by osmosis. B. The cells remove salt to balance the solute concentration. C. The cells take in salt to balance the solute concentration. D. The cells fill with water because of the movement of water by osmosis.

A concentration this affects the movement of molecules across membranes is observed when the two sides of a membrane contain different concentrations of a particular molecule (e.g. glucose).

Interactive Map 2.2 Hare Lynx A different species of hare, the jackrabbit, lives in the southwestern desert. Like other herbivores in its ecosystem (antelope, mice, and ground squirrels), the jackrabbit eats a variety of plant foods including grasses and wildflowers in the spring and summer, and the leaves of shrubs and trees in the winter. The shrubs and trees also provide hiding places from their predators. Predators include hawks, owls, coyotes, foxes, and other mid-sized carnivores. The jackrabbits are also bothered by ticks, fleas, and lice. Which factor might represent top-down regulation for the jackrabbit population? - grasses and wildflowers - shrubs and trees - rainfall needed for plant growth - hawks and owls

The extracellular fluid that bathes the cells of a human is considered part of the internal or external environment.

Among these types of microorganisms, the are noncellular.

Match the gland with the location in the body where it is found. A table depicts the gland and its location in the body. The column headers are location in the body and gland. Location in the Body Gland Sits on top of a kidney Found in the pelvis - Click to select- ✓ Found in the neck - Click to select- ~ Found in the brain - Click to select- ~

Following a meal, what would happen to glycogen stores? Multiple Choice Glycogen stores should increase Glycogen stores should decrease Glycogen stores should be redistributed to skeletal muscles and other tissues Glycogen stores should be redistributed to the liver

Transverse Sagittal Frontal

The protonation of an amine create which functional group? Choose only ONE best answer. A Amide B Guanidino C imidazole D ammonium E nitrate

What is the cellular morphology and arrangement

This tissue is made up of a single layer of narrow and tall cells and can be found lining the inside of the digestive tract: Simple cuboidal epithelium Simple columnar epithelium Reticular connective tissue Simple squamous epithelium Submit Request Answer Part C

Which component of the spleen surrounds the central arteriole?

A phospholipid molecule has a polar and a nonpolar end. Because of this, what do water molecules form? 1 pts Covalent bonds with the nonpolar end of the phospholipid molecule. Hydrogen bonds with the nonpolar end of the phospholipid molecule. Hydrogen bonds with the polar end of the phospholipid molecule. Polar bonds with the nonpolar end of the phospholipid molecule. Polar bonds with the polar end of the phospholipid molecule.

Wilson's disease Masklike facies Elevated unconjugated bilirubin Kayser-Fleischer rings of the cornea Low ceruloplasmin levels High urinary copper Copper accumulation

Identify the cell structure indicated by the yellow arrow.

Question 38 (1 point) Blood volume represents about percent of a person's body weight. A) 15 B) 7 C) 2 D) 25 E) 42

True/False: An example of a population would be collecting the weight of every single animal in a certain animal shelter. Type "True" if this statement is correct or "False" if it is incorrect.

A mutation within a gene always results in a nonfunctional protein. sometimes results in a nonfunctional protein. never results in a nonfunctional protein. always results in a protein with increased function. always results in a new allele.

1) One study of cell phones and the risk of brain cancer looked at a group of 469 people who have brain cancer. The investigators matched each cancer patient with a person of the same age, sex, and race who did not have brain cancer, then asked about the use of cell phones. Result: "our data suggest that the use of hand-held cellular phones is not associated with risk of brain cancer. a) Is this an observational study or an experiment? Justify your answer. b) Based on this study would you conclude that cell phones do not increase the risk of brain cancer? Why or Why not?

Mary is in charge of planning a reception for 3400 people. She is trying to decide which snacks to buy. She has asked a random sample of people who are coming to the reception what their favorite snack is. Here are the results. Favorite Snack Number of People ------ Brownies 31 Cookies 20 Chips 51 Other 65 Based on the above sample, predict the number of the people at the reception whose favorite snack will be chips or cookies. Round your answer to the nearest whole number. Do not round any intermediate calculations. people

Question 3 of 10 Which two statements explain how a cell's parts help it get or break.down nutrients? A. The chloroplasts take in energy from sunlight and change it into organic matter. B. The nucleus stores instructions needed to make proteins from amino acids. C. The mitochondria change energy in organic compounds into a form the cell can use. D. The contractile vacuole collects and squirts excess water out of the cell.

INSPECTION Cultures are observed for the macroscopic appearance of growth characteristics. Cultures are examined under the microscope for basic details such as cell type and shape. This may be enhanced through staining and use of special microscopes.

Which of these are NOT one of the four classes of biological molecules? Nucleic Acids Lipids Carbohydrates Phosphates Amino Acids Proteins

Identify the role of the nervous system in the functions of the male reproductive system. Development of reproductive structures Spermatogenesis Development of secondary sex characteristics Sexual act and behavior

Which organelle is NOT part of the endomembrane system? - rough endoplasmic reticulum - smooth endoplasmic reticulum - mitochondrion - Golgi apparatus

The pituitary stimulates another endocrine gland to secrete its hormone. Then, this second hormone signals the pituitary to inhibit further secretion of the initial pituitary hormone. This is an example of what type of inhibition? Neutral Negative Positive

Which researcher witnessed a ship of his most treasured natural history specimens go up in flames? Alfred Russell Wallace Charles Darwin Charles Lyell Emily Dickinson

A figura a seguir representa a interação entre uma espécie de fungo filamentoso e as raízes de uma gramínea. Essa associação é chamada de micorriza, na qual as hifas dos fungos conectam-se às ramificações das raízes e otimizam a capacidade de absorção de água e de nutrientes que essas estruturas têm. Um exemplo de nutriente que tem sua absorção otimizada por meio dessa associação é o fósforo. Disponível em: https://www.cropscience.bayer.us. Acesso em: 7 maio. 2024. (adaptado) Na planta, o nutriente citado participa da constituição dos(as) A. bases nitrogenadas, que estão presentes nas moléculas de DNA. B. moléculas de ATP, que fornecem energia para as células. C. aminoácidos, que são as unidades básicas das proteínas. D. polímeros de celulose, que compõem a parede das células. E. monômeros do amido, que formam a reserva energética das plantas.

중요 04 그림은 한 변의 길이가 각각 1 cm, 2 cm, 3 cm 인 정육면체 모 난 후 꺼내 우무 조각의 가운데 부분을 잘랐을 때의 결과이다. 우무 조각을 세포라고 할 때 이 실험 결과를 바탕으로 알 수 있 는 사실로 옳은 것은? (1) 세포의 크기와 물질 교환은 관계가 없다. (2) 세포의 크기가 클수록 표면적의 크기가 작아진다. (3) 세포의 크기가 클수록 부피에 대한 표변적의 비가 키진다. (4) 세포의 크기가 클수록 세포 중심까지 영양소가 흡수되기 에 유리하다. (8) 세포의 크기가 어느 정도 이상 커지면 세포 분열을 하는 것이 물질 교환에 유리하다.

Which statement is true of water's tensile strength? (a) It results from hydrogen bonding. (b) It helps to pull water through plants. (c) It involves both cohesion and adhesion. Both (a) and (b). (a), (b), and (c).

morning glory, genus Ipomoea ay-poh-mee-uh ay-pow-may-ä ay-poh-mee-ä ee-poh-mö-uh üh-pow-may-uh

Which of the following is NOT a challenge of data warehouse design? Determining analytics and reporting Performance requirements Data quality Internet speed

From this picture, mark all that are flowering plants. Select one or more: a. T. b. X. c. V. d. Z. e. Y.

An example of an essential nutrient is fiber folate creatine cholesterol glucose

One who is exercising should not exceed his or her maximum heart rate, which is determined basis of that person's gender, age, and resting heart rate. The table relates resting heart rate ximum heart rate for a 20-year-old man. Use a graphing calculator to model the data with a linear function. Estimate the maximum heart rate if the resting heart rate is 42, 62, 74, and 82. What is the correlation coefficient? How confident are you about using the regression line to estimate function values? Resting Heart Rate, H (in beats per minute) Maximum Heart Rate, M (in beats per minute) 50 160 60 160 70 160 80 170 The linear function that best models the data is M=0.3 H+148. The estimated maximum heart rate for the resting heart rate of 42 is beats per minute.

Natural gas is a renewable resource. True False

Cell Type Dichotomous Key 1a cell has a nucleus and organelles → go to step 2 1b cell has no nucleus or organelles → bacterial cell 2a cell has a cell wall → go to step 3 2b cell has no cell wall → animal cell 3a cell has chloroplasts → plant cell 3b cell has no chloroplasts → fungal cell What type of cell is cell A? A animal B bacterial C fungal D plant

Which of the following bones are part of the axial skeleton? Select all that apply. Answers: A - F A Talus B Sternum C Scapula D Clavicle E Mandible F Fibula

Select all the structures that represent secondary carbocations. Structure A Structure B Structure C Structure D Structure E

Dysfunction of which organ is most likely to result in the presence of anemia? A Kidneys B Spleen C Pituitary gland D Lungs E Heart

What are the simplest body structures considered alive

Which of the following is Not considered a living thing A. Virus B. Bacteria C. Plant D. Animal

You use the Gram staining procedure to stain an L-form bacterium (a bacterium that lacks a cell wall). After the staining procedure is finished, the color of the bacterium will be purple. True False Moving to the next question prevents changes to this answer.

Determining age involves knowing the functional capacities of a person's vital organs.

What is proprioception? - Stringing words together that do not make sense - An individual's ability to recognize where their bodies are in space - Making up words - People in the environment that affect behavior

Baby Juan-Carlos was born full term but was underweight for his gestational age. The baby would be considered preterm. premature. normal. small for date.

Microbiology involves the study of microscopic organisms or agents, including which of the following: Bacteria Viruses Protozoa Fungi Helminths

Cerego BIO-202 Topic 5: Digestive System Physiology PRACTICE IT What are the three types of cells involved in gastric secretion? Sensory, Motor, and Interneuron Cells Basal, Transitional, and Squamous Cells White Blood Cells, Red Blood Cells, and Platelets Parietal, chief, and mucous cells Adipose, Epithelial, and Nerve Cells Submit answer

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.

Which of the following statements res Erythrocytes are the most abund million / mm^3. Erythrocytes live for approximate Erythrocytes are highly metabolio for ATP production. Erythrocytes are described as an Erythrocytes form stacks, called vessels.

Which of the following statements is NOT TRUE? The temperature of blood is typically higher. The salt concentration of blood is about 0.85% to maintain osmotic pressure. Blood is a liquid connective tissue and constitutes a significant portion of a person's overall body weight. The homeostatic range for blood pH is 7.35 to 7.45, making it slightly alkaline. Blood is 4-5 times more viscous than water, making it harder for the heart to pump than water.

In the polypeptide Ser-Cys-Ala-Gly, Gly is the amino acid In the nucleotide sequence ATCG, the nucleotide G is the nucleotide

The Human Microbiome Project used DNA sequencing to characterize microbial communities that inhabit the human body attempted to characterize the impact of humans on different environments around the planet quantified the human population in each country on earth cultivated, in pure culture, all the species of bacteria living in and on the human body

QUESTION 14 - 1 POINT Norville collected the data below about the length of the femur and their height both in centimeters for 10 different adults. Use this information to determine the correlation coefficient, round to 4 decimals. femur length: 47.18, 47.88, 35.56, 35.99, 37.75, 43.03, 41.45, 44.95, 38.19, 37.61 height: 160, 186, 190, 165, 163, 157, 161, 154, 185, 163 Provide your answer below: r=

Both collagen and elastin are mostly composed of - Select the correct response: skin nerves melanocytes protein

You are performing a Gram stain on gram-negative bacteria and you stop after the decolorizer step. What is the appearance of the bacteria at this point?

Question 7 The appendicular skeleton is made up of the upper and lower extremities. True False Previous

Question: 8 What will be the MOST LIKELY result of a severe drought in a region? A. more water B. more food c. more wetlands D. more wildfires

13. QUESTION What is the function of the small intestine? Propulsion of feces to the rectum Compaction of waste to feces Absorption of nutrients Mastication Next

Vicky makes jewelry. She uses 42 beads for each necklace that she makes, and she has 500 beads. How many necklaces can she make? Explain.

LEARNING OBJECTIVE: Determine the structure and function of the stomach. Which substance secreted by the stomach is necessary for the absorption of vitamin B12 by the small intestine? a.) Grehlin b.) Intrinsic factor c.) Gastrin d.) Pepsinogen

UNIT 3 - CHALLENGE 3.1: The Digestive System Which letter in the figure indicates the pyloric sphincter? a.) E b.) C c.) A d.) D

The primary structural molecule composing a cell membrane is a(n)

Read the poem. There are 14 lines in the poem. The poem is numbered every This question has two parts. Answer Part A, and then answer Part B. 5 lines. To an Oak O Oakl long years the stress of storm and wind Has made thy limbs exult in growing thew, And deeper, surer in the earth descend The thousand tendrils that were strengthening you; With best of sun and song and rain and dew High on the hill thy strength, tho' storm and wind Oft did thy tender thewless youth unbend; But greater thou in limb and power grew. O mighty oakl with faith serene and sure, impart to me the secret of thy girth. Invest me master of thy patient will; That through the coming years I may endure, And deeper rooted in the fields of earth. At last, as thou, be sovereign of a hill. ("To an Oak" by Charies Bertram Johnson) Part A These lines are from the poem. "With best of sun and song and rain and dew High on the hill thy strength, tho" storm and wind Oft did thy tender thewless youth unbend; But greater thou in limb and power grew." (Lines 5-8) What do these lines most clearly reveal about the tree? 1. It became larger by growing multiple new branches. 2. It learned to live in good and bad weather conditions. 3. It overcame hardships more easily because it was on a hill. 4. It became larger and stronger in spite of challenges it faced. Part B How do these lines contribute to an important idea in the poem? 1. They show what the speaker wants to learn from the tree. 2. They show what the speaker thinks is interesting about the tree. 3. They show what the speaker likes about the appearance of the tree. 4. They show what the speaker has trouble understanding about the tree.

Which parts of the T-cell antigen receptor account for the diversity of antigens that T-cells can recognize? a.) The amino acid sequences of the variable domains of the beta chains only. b.) The amino acid sequences of the variable domains of both the alpha and beta chains. c.) The amino acid sequences of the variable domains of the alpha chains and the constant domains of both alpha and beta chains. d.) The amino acid sequences of the variable domains of the alpha chains only.

Quantitative observations rely on the use of which of the following to gather data and observe results? a Hearing b Smell c Taste d Measurements

The was an early and incorrect idea that the inherited characteristics of offspring are intermediate between maternal and paternal genetic characteristics.

An organism's observable or measurable characteristics make up its phenotype

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