Countercurrent heat exchange allows animals to
A) minimize heat loss to their environment.
B) keep their hearts warm enough to pump blood.
C) live in extremely hot dessert environments.
D) slow down food digestion.
E) absorb heat from their environment.

Question

Quizplus · Accepted Answer

Countercurrent heat exchange allows animals to minimize heat loss to their environment by warming up the colder blood returning to the body with heat from the warmer blood going out to the extremities. This helps to maintain a constant body temperature in cold environments.

Countercurrent Heat Exchange Allows Animals to