The panting responses observed in overheated birds and mammals dissipate excess heat by ________.
A) countercurrent exchange
B) acclimation
C) vasoconstriction
D) evaporation

Question

Quizplus · Accepted Answer

Panting responses in overheated birds and mammals dissipate excess heat through evaporation. As the animal pants and exhales, moisture is released from the respiratory surfaces, resulting in evaporative cooling. This process helps to regulate body temperature and prevent heat stress. Countercurrent exchange and vasoconstriction are other mechanisms for regulating body temperature, but they are not directly involved in dissipating excess heat through panting. Acclimation refers to an organism's long-term physiological adaptation to a new environment, which may include changes in its thermoregulatory mechanisms.

The Panting Responses Observed in Overheated Birds and Mammals Dissipate