Question 1

In our kidneys, blood gets filtered in

Accepted Answer

A)  the glomerulus.
B)  the tubules.
C)  capillaries surrounding the tubules.
D)  the bladder.

Question 2

Cooling by evaporation requires

Accepted Answer

A)  radiation.
B)  a dried surface.
C)  a wet surface.
D)  conduction.

Question 3

The physical movement of heat that results from the movement of air or water is known as

Accepted Answer

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

Question 4

A breeze cools a hot, dry surface by

Accepted Answer

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

Question 5

Conduction is a form of convection.

Accepted Answer

A) True 
 B)False

Question 6

Why do animals that live in cold climates have thick fur coats?

Accepted Answer

A)  Fur reduces convection and traps a layer of air heated by conduction close to the skin, keeping the animal's body warmer.
B)  Thicker fur allows animals to better blend into the environment, providing protection from other animals.
C)  Fur decreases the ratio of surface area to volume of the animal so it does not lose as much heat.
D)  Fur prevents the formation of ice crystals next to the skin of the animal, which prevents cells from freezing and being damaged by ice.

Question 7

After about an hour of basking in the sun, the body temperature of the marine iguana reaches 37°C and it dives into the water to feed. In the water, its body temperature rapidly drops and it must return to the rocks to warm up. This is an example of

Accepted Answer

A)  endothermic behavior.
B)  positive feedback.
C)  ectothermic conduction.
D)  negative feedback.

Question 8

The circulation of blood through the body eventually increases the rate of heat transfers by

Accepted Answer

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

Question 9

Heat can be gained or lost by radiation.

Accepted Answer

A) True 
 B)False

Question 10

An animal that does not maintain a relatively constant core temperature is a(n)____________________.

Accepted Answer

The answer of An animal that does not maintain a...

Question 11

Which of the following statements about homeostasis is false?

Accepted Answer

A)  The more solutes present in a cell, the better it functions. Homeostasis is used to make sure that all available solutes are pumped into cells.
B)  The enzymes that run an organism have evolved to function best under certain conditions. Maintaining homeostasis allows enzymes to function optimally.
C)  High temperatures can cause proteins to unfold. Maintaining a set temperature in an organism through homeostasis prevents this from happening.
D)  Water dilutes solutes, making it difficult for reactants to get together and perform chemical reactions. Homeostasis ensures that the proper amount of water is retained within cells.

Question 12

For a vertebrate animal to obtain and use energy,

Accepted Answer

A)  the digestive system is used to break down oxygen to be stored in cells.
B)  the circulatory system must provide carbon dioxide to cells.
C)  the circulatory, respiratory, digestive, endocrine, and nervous systems are some systems involved.
D)  only one organ system, the digestive system, is needed.

Question 13

The figure below illustrates how the nephron in a human kidney aids in the removal of toxic by-products of protein metabolism and assists in the regulation of internal water and solute concentrations. 
In the region of the nephron labeled "tubule," sodium is

Accepted Answer

A)  leaving the tubule by diffusion.
B)  being pumped out of the tubule by active transport.
C)  moving out of the tubule through osmosis.
D)  exiting the tubule via secretion.

Question 14

____________________ tissue, the interface between an organism and its environment, regulates the amount of water, heat, and other substances that are exchanged with the external environment.

Accepted Answer

The answer of ____________________ tissue, the interface between an organism...

Question 15

The lack of water, otherwise known as ____________________, can lead to heatstroke.

Accepted Answer

The answer of The lack of water, otherwise known as...

Question 16

Animals can gain or lose heat by conduction and radiation, but the process of ____________________ only results in heat loss.

Accepted Answer

The answer of Animals can gain or lose heat by...

Question 17

Despite its large size, an elephant can conserve heat energy longer than a hummingbird.

Accepted Answer

A) True 
 B)False

Question 18

Capillary walls

Accepted Answer

A)  act as barriers to excessive movement of materials to and from blood plasma.
B)  are selectively permeable, allowing only one-way movement of materials from interstitial fluid to blood plasma.
C)  are thin-walled, allowing diffusion of materials to and from blood plasma and interstitial fluid.
D)  actively transport materials from blood plasma to interstitial fluid.

Question 19

Having hundreds of different types of cells in the human body promotes efficiency of bodily processes.

Accepted Answer

A) True 
 B)False

Question 20

An animal can lose heat by ____________________ even when the environmental temperature is greater than its internal temperature.

Accepted Answer

The answer of An animal can lose heat by ____________________...

Exam 26: Internal Organization and Homeostasis

Capillary walls

Correct AnswerverifiedShow Answer

Despite its large size, an elephant can conserve heat energy longer than a hummingbird.

Correct AnswerverifiedShow Answer

The lack of water, otherwise known as ____________________, can lead to heatstroke.

Correct AnswerverifiedShow Answer

The circulation of blood through the body eventually increases the rate of heat transfers by

Correct AnswerverifiedShow Answer

Animals can gain or lose heat by conduction and radiation, but the process of ____________________ only results in heat loss.

Correct AnswerverifiedShow Answer

The physical movement of heat that results from the movement of air or water is known as

Correct AnswerverifiedShow Answer

For a vertebrate animal to obtain and use energy,

Correct AnswerverifiedShow Answer

____________________ tissue, the interface between an organism and its environment, regulates the amount of water, heat, and other substances that are exchanged with the external environment.

Correct AnswerverifiedShow Answer

An animal can lose heat by ____________________ even when the environmental temperature is greater than its internal temperature.

Correct AnswerverifiedShow Answer

A breeze cools a hot, dry surface by

Correct AnswerverifiedShow Answer

In our kidneys, blood gets filtered in

Correct AnswerverifiedShow Answer

Why do animals that live in cold climates have thick fur coats?

Correct AnswerverifiedShow Answer

Which of the following statements about homeostasis is false?

Correct AnswerverifiedShow Answer

After about an hour of basking in the sun, the body temperature of the marine iguana reaches 37°C and it dives into the water to feed. In the water, its body temperature rapidly drops and it must return to the rocks to warm up. This is an example of

Correct AnswerverifiedShow Answer

Cooling by evaporation requires

Correct AnswerverifiedShow Answer

Having hundreds of different types of cells in the human body promotes efficiency of bodily processes.

Correct AnswerverifiedShow Answer

Conduction is a form of convection.

Correct AnswerverifiedShow Answer

The figure below illustrates how the nephron in a human kidney aids in the removal of toxic by-products of protein metabolism and assists in the regulation of internal water and solute concentrations. In the region of the nephron labeled "tubule," sodium is

Correct AnswerverifiedShow Answer

An animal that does not maintain a relatively constant core temperature is a(n)____________________.

Correct AnswerverifiedShow Answer

Heat can be gained or lost by radiation.

Correct AnswerverifiedShow Answer

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