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

Question

Quizplus · Accepted Answer

This is an example of negative feedback because the marine iguana regulates its body temperature by moving between the sun and the water. When its body temperature becomes too high, it cools down in the water, and when it becomes too low, it warms up in the sun, maintaining a stable internal condition.

After About an Hour of Basking in the Sun,the Body