The panting responses observed in overheated birds and mammals dissipate excess heat by . The panting responses observed in overheated birds and mammals dissipate excess heat by . vasoconstriction acclimation countercurrent exchange evaporation

Evaporation

Explanation:

Panting can be defined as the condition which is used in response to the heat by the body. Whenever the body responds in order to maintain the equilibrium inside the body.

Panting is very common in the reptiles, mammals, birds which helps in the cooling of the body.

This is accomplished by the means of evaporation by which the evaporation from the internal body surface takes place.

c. is the correct answer