Q.

Dormancy period of animals during winter season is called –

A. Aestivation
B. Hibernation
C. Regeneration
D. Mutation
Answer» B. Hibernation
Explanation: Hibernation is a state of inactivity and metabolic depression in endotherms. Hibernation refers to a season of heterothermy that is characterized by low body temperature, slow breathing and heart rate, and low metabolic rate. Often associated with cold temperatures, the purpose of hibernation is to conserve energy during a period when sufficient food is scarce.
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