38. Animal Form and Function

Which of the following is a description of a behavior that helps warm the body?

During a fever, the __________ readjusts the set point of the body to a __________ temperature.

Sweating __________.

In the late fall, bats hibernate in clusters with many bats pressed together and holding on to one another. Which of the following statements does not represent an advantage of this behavior?

What do host cells provide for viruses?a. ATPb. nucleotides and amino acidsc. ribosomesd. all of the above

Which of the following would increase the rate of heat exchange between an animal and its environment?a. feathers or furb. vasoconstrictionc. wind blowing across the body surfaced.countercurrent heat exchanger

Which of the following is not an adaptation for reducing the rate of heat loss to the environment?a. feathers or furb. increasing blood flow to surface blood vesselsc. huddling behavior of penguinsd. countercurrent heat exchange

Which of the following is an advantage that ectotherms have over endotherms of the same size?a. They require much less food.b. They are less vulnerable to predation during cold weather.c. They can remain active in cold weather or on cold nights.d. They have higher metabolic rates and grow more quickly.