What is an endogenous rhythm?

a. The activity cycle generated by a biological clock that is not reset.
b. the sleep pattern of a sleep-deprived person allowed to sleep without restrictions.
c. a pattern of activity that varies unpredictably from one day to the next.
d. the activity level of an animal that does not have a biological clock.


Answer: a. The activity cycle generated by a biological clock that is not reset.

Biology & Microbiology

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