Question 1

Which of the following pairs of organisms excrete nitrogenous wastes in the form of uric acid?

Accepted Answer

A)  mice and birds
B)  insects and birds
C)  lions and horses
D)  humans and frogs
E)  fish and turtlesF) A) and C)
G) C) and E)

Question 2

Within a normally functioning kidney,blood can be found in

Accepted Answer

A)  the vasa recta.
B)  Bowman's capsule.
C)  the loop of Henle.
D)  the proximal tubule.
E)  the collecting duct.F) All of the above
G) A) and E)

Question 3

You are observing an unknown animal species in the Amazon rain forest and want to know whether it is an ectotherm or an endotherm.Which of the following methods would be the least helpful in making this determination?

Accepted Answer

A)  Measure the animal's body temperature,and compare it to ambient temperature at various times throughout the day and night.
B)  Determine the animal's urine production,and compare it to ambient temperature at various times throughout the day and night.
C)  Measure the animal's rate of oxygen consumption,and compare it to ambient temperature at various times throughout the day and night.
D)  Observe the animal's behavior and activity level,and compare it to ambient temperature at various times throughout the day and night.E) None of the above
F) All of the above

Question 4

Blood is best classified as connective tissue because

Accepted Answer

A)  its cells are separated from each other by an extracellular matrix.
B)  it contains more than one type of cell.
C)  it is contained in vessels that "connect" different parts of an organism's body.
D)  its cells can move from place to place.
E)  it is found within all the organs of the body.F) B) and E)
G) A) and B)

Question 5

The temperature-regulating center of vertebrate animals is located in the

Accepted Answer

A)  pituitary gland.
B)  thyroid gland.
C)  hypothalamus.
D)  adrenal glands.E) A) and C)
F) C) and D)

Question 6

In a cold environment that supports life,an ectotherm is more likely to survive an extended period of food deprivation than would an equal size endotherm because the ectotherm

Accepted Answer

A)  expends more energy per kilogram of body mass than does the endotherm.
B)  invests less energy in temperature regulation.
C)  metabolizes its stored energy more readily than does the endotherm.
D)  has greater insulation on its body surface.E) A) and D)
F) None of the above

Question 7

Abnormally reduced somatic growth (dwarfism) can be a consequence of decreased hormone secretion from the

Accepted Answer

A)  kidneys.
B)  pancreas.
C)  adrenal gland.
D)  posterior pituitary gland.
E)  anterior pituitary gland.F) B) and C)
G) A) and B)

Question 8

Melatonin is secreted by

Accepted Answer

A)  the hypothalamus.
B)  the pineal gland.
C)  the adrenal medulla.
D)  the posterior pituitary gland.
E)  the thyroid gland.F) A) and B)
G) A) and C)

Question 9

Connective tissues typically have

Accepted Answer

A)  many densely packed cells with direct connections between the membranes of adjacent cells.
B)  an apical side and a basal side.
C)  the ability to shorten upon stimulation.
D)  relatively few cells and a large amount of extracellular matrix.
E)  the ability to transmit electrochemical impulses.F) B) and D)
G) B) and C)

Question 10

Excretory organs known as Malpighian tubules are present in

Accepted Answer

A)  earthworms.
B)  flatworms.
C)  insects.
D)  jellyfish.
E)  sea stars.F) D) and E)
G) A) and E)

Question 11

Materials are returned to the blood from the filtrate by which of the following processes?

Accepted Answer

A)  filtration
B)  reabsorption
C)  secretion
D)  excretionE) A) and D)
F) All of the above

Question 12

The typical osmolarity of human blood is

Accepted Answer

A)  100 mOsm/L.
B)  200 mOsm/L.
C)  300 mOsm/L.
D)  500 mOsm/L.E) B) and C)
F) A) and B)

Question 13

A primary reason that the kidneys have one of the highest metabolic rates of all body organs is that

Accepted Answer

A)  they store the body's excess fats.
B)  they have membranes of varying permeability to water.
C)  they operate an extensive set of active-transport ion pumps.
D)  they are the body's only means of shedding excess nutrients.E) None of the above
F) C) and D)

Question 14

The interrelationships between the endocrine and the nervous systems are especially apparent in a

Accepted Answer

A)  neuron in the spinal cord.
B)  steroid-producing cell in the adrenal cortex.
C)  neurosecretory cell in the hypothalamus.
D)  neuron in the cerebral cortex.
E)  digestive enzyme-producing cell in the pancreas.F) C) and D)
G) B) and D)

Question 15

A football player has been rushed to the emergency room after passing out during practice on a hot day.The player is sweating extensively but appears to have normal blood pressure.As the attending physician,you need to give the player a drug to counteract his symptoms.Which of the following drugs would be best to give the player?

Accepted Answer

A)  a drug that acts like ADH
B)  a drug that acts like oxytocin
C)  a drug that acts like insulin
D)  a drug that acts like melatonin
E)  a drug that acts like angiotensin IIF) A) and B)
G) A) and C)

Question 16

How do marine fish perform osmoregulation?

Accepted Answer

A)  through gaining water through the gills
B)  through gaining salt through the gills
C)  through drinking water and eating food
D)  through excreting large amounts of dilute urineE) A) and C)
F) B) and D)

Exam 32: Homeostasis and Endocrine Signaling

The interrelationships between the endocrine and the nervous systems are especially apparent in a

Correct Answer
verified

Materials are returned to the blood from the filtrate by which of the following processes?

Correct Answer
verified

Within a normally functioning kidney,blood can be found in

Correct Answer
verified

Connective tissues typically have

Correct Answer
verified

The typical osmolarity of human blood is

Correct Answer
verified

How do marine fish perform osmoregulation?

Correct Answer
verified

Which of the following pairs of organisms excrete nitrogenous wastes in the form of uric acid?

Correct Answer
verified

The temperature-regulating center of vertebrate animals is located in the

Correct Answer
verified

Excretory organs known as Malpighian tubules are present in

Correct Answer
verified

You are observing an unknown animal species in the Amazon rain forest and want to know whether it is an ectotherm or an endotherm.Which of the following methods would be the least helpful in making this determination?

Correct Answer
verified

A primary reason that the kidneys have one of the highest metabolic rates of all body organs is that

Correct Answer
verified

Correct Answer
verified

Abnormally reduced somatic growth (dwarfism) can be a consequence of decreased hormone secretion from the

Correct Answer
verified

Blood is best classified as connective tissue because

Correct Answer
verified

Melatonin is secreted by

Correct Answer
verified

In a cold environment that supports life,an ectotherm is more likely to survive an extended period of food deprivation than would an equal size endotherm because the ectotherm

Correct Answer
verified

Exam 32: Homeostasis and Endocrine Signaling

The interrelationships between the endocrine and the nervous systems are especially apparent in a

Correct AnswerverifiedShow Answer

Materials are returned to the blood from the filtrate by which of the following processes?

Correct AnswerverifiedShow Answer

Within a normally functioning kidney,blood can be found in

Correct AnswerverifiedShow Answer

Connective tissues typically have

Correct AnswerverifiedShow Answer

The typical osmolarity of human blood is

Correct AnswerverifiedShow Answer

How do marine fish perform osmoregulation?

Correct AnswerverifiedShow Answer

Which of the following pairs of organisms excrete nitrogenous wastes in the form of uric acid?

Correct AnswerverifiedShow Answer

The temperature-regulating center of vertebrate animals is located in the

Correct AnswerverifiedShow Answer

Excretory organs known as Malpighian tubules are present in

Correct AnswerverifiedShow Answer

You are observing an unknown animal species in the Amazon rain forest and want to know whether it is an ectotherm or an endotherm.Which of the following methods would be the least helpful in making this determination?

Correct AnswerverifiedShow Answer

A primary reason that the kidneys have one of the highest metabolic rates of all body organs is that

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Abnormally reduced somatic growth (dwarfism) can be a consequence of decreased hormone secretion from the

Correct AnswerverifiedShow Answer

Blood is best classified as connective tissue because

Correct AnswerverifiedShow Answer

Melatonin is secreted by

Correct AnswerverifiedShow Answer

In a cold environment that supports life,an ectotherm is more likely to survive an extended period of food deprivation than would an equal size endotherm because the ectotherm

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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