Question

Most animals have a daily cycle of activity. During this daily cycle, ___________ is an internal cue that tells an animal it is time to restore its body’s ability to function.

A)
competition


B)
hunger


C)
sleepiness


D)
thirst

Answer 1

Most animals have a daily cycle of activity. During this daily cycle, sleepiness is an internal cue that tells an animal it is time to restore its body’s ability to function.

Hope this helps!!

Answer 2

I would say that the answer to this is C, sleepiness because sleep is what powers and animals ability to function, so when it needs sleep, the brain would most likely trigger sleepiness