Question 1

Sweating results in heat loss by convection.

Accepted Answer

A) True 
 B)False

Question 2

In a nephron the filtrate is derived from blood plasma.

Accepted Answer

A) True 
 B)False

Question 3

Most marine animals and all land animals are ____________________ because they maintain internal salt and water levels that are not the same as those of their surroundings.

Accepted Answer

The answer of Most marine animals and all land animals...

Question 4

To maintain constant internal conditions, an animal

Accepted Answer

A) must produce more metabolic heat than it loses to its surroundings. 
B) needs to take in more water than it loses to its surroundings. 
C) needs to lose and gain equal amounts of heat and water but lose more solutes than it gains. 
D) must gain and lose equal amounts of heat, solutes, and water. 
A) must produce more metabolic heat than it loses to its surroundings. 
B) needs to take in more water than it loses to its surroundings. 
C) needs to lose and gain equal amounts of heat and water but lose more solutes than it gains. 
D) must gain and lose equal amounts of heat, solutes, and water.

Question 5

A person whose hands are being warmed by holding a hot cup of tea is gaining heat by

Accepted Answer

A) convection. 
B) conduction. 
C) evaporation. 
D) radiation. 
A) convection. 
B) conduction. 
C) evaporation. 
D) radiation.

Question 6

An iguana swimming in water colder than its body temperature

Accepted Answer

A) balances the loss through metabolism. 
B) gains heat from the water by reverse conduction. 
C) loses heat by conduction and convection. 
D) retains heat by increasing its heart rate. 
A) balances the loss through metabolism. 
B) gains heat from the water by reverse conduction. 
C) loses heat by conduction and convection. 
D) retains heat by increasing its heart rate.

Question 7

Since the fur color of many mammals darkens in the winter months, the following conclusion is drawn:

Accepted Answer

A) It is an adaptation that allows the mammal to reflect radiant energy. 
B) It is an acclimation that allows mammals to absorb radiant energy. 
C) It is an adaptation that allows mammals to absorb radiant energy. 
D) It is an acclimation that allows mammals to reflect radiant energy. 
A) It is an adaptation that allows the mammal to reflect radiant energy. 
B) It is an acclimation that allows mammals to absorb radiant energy. 
C) It is an adaptation that allows mammals to absorb radiant energy. 
D) It is an acclimation that allows mammals to reflect radiant energy.

Question 8

Insulin is a protein hormone that helps cells use glucose. In type I diabetes, insulin-making cells of the pancreas are attacked and destroyed. The preceding information is an example of the

Accepted Answer

A) digestive, circulatory, and excretory systems affecting one another. 
B) importance of the excretory system to remove wastes and other toxins. 
C) importance of only one system needed to perform a function. 
D) endocrine, digestive, circulatory, and immune systems affecting each other. 
A) digestive, circulatory, and excretory systems affecting one another. 
B) importance of the excretory system to remove wastes and other toxins. 
C) importance of only one system needed to perform a function. 
D) endocrine, digestive, circulatory, and immune systems affecting each other.

Question 9

After viewing the image below, one should conclude that

Accepted Answer

A) the image is that of a tissue made of multiple organs. 
B) the image is that of an organ made of multiple tissues. 
C) cells are large and create large organs. 
D) only one type of tissue can make up a specific organ. 
A) the image is that of a tissue made of multiple organs. 
B) the image is that of an organ made of multiple tissues. 
C) cells are large and create large organs. 
D) only one type of tissue can make up a specific organ.

Question 10

When a dog pants (breathes in and out rapidly through the mouth), evaporative cooling is enhanced by

Accepted Answer

A) conduction. 
B) radiation. 
C) convection. 
D) metabolism. 
A) conduction. 
B) radiation. 
C) convection. 
D) metabolism.

Question 11

One reason we get thirsty is that

Accepted Answer

A) our kidneys cannot reabsorb about a bathtub's volume of water each day. 
B) blood flowing through the glomerulus loses all of its salts. 
C) blood in capillaries moves directly into tubules. 
D) some water is lost in the production of a dilute urine. 
A) our kidneys cannot reabsorb about a bathtub's volume of water each day. 
B) blood flowing through the glomerulus loses all of its salts. 
C) blood in capillaries moves directly into tubules. 
D) some water is lost in the production of a dilute urine.

Question 12

Some species of fish that live in the cold waters of the Arctic Ocean have evolved an "antifreeze" protein. Why might this protein be important to homeostasis?

Accepted Answer

A) The protein might be involved in transporting water into fish cells during cold weather. The more water in the cell, the smaller the chance that ice crystals will form. 
B) The protein might prevent ice crystals from forming inside cells, which would prevent damage to the plasma membrane when temperatures are low. 
C) The protein might be involved in removing solutes from fish cells during cold weather. With fewer solutes in the cell, essential chemical reactions are more likely to occur. 
D) The protein might allow this species of fish to survive global warming by allowing it to carry out chemical reactions that would normally be prevented by warm temperatures. 
A) The protein might be involved in transporting water into fish cells during cold weather. The more water in the cell, the smaller the chance that ice crystals will form. 
B) The protein might prevent ice crystals from forming inside cells, which would prevent damage to the plasma membrane when temperatures are low. 
C) The protein might be involved in removing solutes from fish cells during cold weather. With fewer solutes in the cell, essential chemical reactions are more likely to occur. 
D) The protein might allow this species of fish to survive global warming by allowing it to carry out chemical reactions that would normally be prevented by warm temperatures.

Question 13

Which of the following is not a function of the kidneys?

Accepted Answer

A) filtration 
B) urination 
C) reabsorption 
D) secretion 
A) filtration 
B) urination 
C) reabsorption 
D) secretion

Question 14

Examine the table below.  
Based on the data in this table, which organism is most likely to be an osmoconformer? Note that lobsters and flounders live in seawater and goldfish live in freshwater.

Accepted Answer

A) lobster 
B) flounder 
C) goldfish 
D) humans 
A) lobster 
B) flounder 
C) goldfish 
D) humans

Question 15

Because the brain controls all body functions, the ____________________ system is the only system that communicates with all other body systems.

Accepted Answer

The answer of Because the brain controls all body functions,...

Question 16

Which of the following statements about temperature regulation is false?

Accepted Answer

A) All organisms maintain the same core temperature. 
B) Some organisms maintain a constant core temperature even when the external environment changes. 
C) Some organisms' core temperatures vary when the external environment varies. 
D) Different organisms may have different core temperatures at which they do well. 
A) All organisms maintain the same core temperature. 
B) Some organisms maintain a constant core temperature even when the external environment changes. 
C) Some organisms' core temperatures vary when the external environment varies. 
D) Different organisms may have different core temperatures at which they do well.

Question 17

Aerobic exercise generates body heat primarily due to muscle contractions.

Accepted Answer

A) True 
 B)False

Question 18

To maintain homeostasis of its body fluids, a frog in freshwater would have to

Accepted Answer

A) actively transport salts out and excrete dilute urine. 
B) actively transport salts in and excrete concentrated urine. 
C) actively transport water out and excrete dilute urine. 
D) actively transport salts in and excrete dilute urine. 
A) actively transport salts out and excrete dilute urine. 
B) actively transport salts in and excrete concentrated urine. 
C) actively transport water out and excrete dilute urine. 
D) actively transport salts in and excrete dilute urine.

Question 19

Negative feedback

Accepted Answer

A) stops a process, before it reaches its set point. 
B) determines what the set point of a process should be. 
C) slows down or shuts off a process when a set point is reached. 
D) prevents positive feedback. 
A) stops a process, before it reaches its set point. 
B) determines what the set point of a process should be. 
C) slows down or shuts off a process when a set point is reached. 
D) prevents positive feedback.

Question 20

A large glass of ice water and a small glass of ice water are sitting on a table in the same room. The small glass of water would reach room temperature before the large glass of water.

Accepted Answer

A) True 
 B)False

Exam 26: Internal Organization and Homeostasis

Sweating results in heat loss by convection.

In a nephron the filtrate is derived from blood plasma.

Most marine animals and all land animals are ____________________ because they maintain internal salt and water levels that are not the same as those of their surroundings.

To maintain constant internal conditions, an animal

A person whose hands are being warmed by holding a hot cup of tea is gaining heat by

An iguana swimming in water colder than its body temperature

Since the fur color of many mammals darkens in the winter months, the following conclusion is drawn:

Insulin is a protein hormone that helps cells use glucose. In type I diabetes, insulin-making cells of the pancreas are attacked and destroyed. The preceding information is an example of the

After viewing the image below, one should conclude that

When a dog pants (breathes in and out rapidly through the mouth), evaporative cooling is enhanced by

One reason we get thirsty is that

Some species of fish that live in the cold waters of the Arctic Ocean have evolved an "antifreeze" protein. Why might this protein be important to homeostasis?

Which of the following is not a function of the kidneys?

Examine the table below. Based on the data in this table, which organism is most likely to be an osmoconformer? Note that lobsters and flounders live in seawater and goldfish live in freshwater.

Because the brain controls all body functions, the ____________________ system is the only system that communicates with all other body systems.

Which of the following statements about temperature regulation is false?

Aerobic exercise generates body heat primarily due to muscle contractions.

To maintain homeostasis of its body fluids, a frog in freshwater would have to

Negative feedback

A large glass of ice water and a small glass of ice water are sitting on a table in the same room. The small glass of water would reach room temperature before the large glass of water.

The Nature of Science and the Characteristics of Life

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Stem Cells, Cancer, and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

Dna and Genes

From Gene to Protein

Dna Technology

How Evolution Works

Evolution of Populations

Speciation and the Origins of Biological Diversity

The Evolutionary History of Life

The Biosphere

Growth of Populations

Ecological Communities

Ecosystems

Global Change

Nutrition and Digestion

Circulation and Gas Exchange

Animal Hormones

Nervous and Sensory Systems

Skeletons, Muscles, and Movement

Defenses Against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

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