posted by john .
which of the following pairs of terms could be used to describe a bullfrog that is active at night and enters a state of complete inactivity during cold months?
A. cooperation and hibernation
B. aggression and circadian rhythm
C.circadian rhythm and hibernation
D. courtship and cooperation
If you know all of the terms mean, you'll know the answer. Read the article I posted.
I think it is C. Am I correct?
Yes. C is right.