Physiological adaptation to very dry conditions in animals demonstrates

A.

Xeromorphism

B.

Hibernation

C.

Aestivation

D.

Rejuvenation

Correct answer is C

Aestivation or æstivation is a state of animal dormancy, similar to hibernation, although taking place in the summer rather than the winter. Aestivation is characterized by inactivity and a lowered metabolic rate that is entered in response to high temperatures and arid conditions.