A behavioral adaptation in which animals undergo a period of greatly reduced activity in winter is _____.

A. clustes
B. hibernation
C. burrows
D. estivation

I'll be glad to check your answer.

thanks

1. hibernation

Yes, hibernation

its hibernation

Funny thing: "connexion academy expert" and "puchu" seem to be the same person! Weird!!

no they're not the same person im sure, some people like to say the answer again even tho its already been said