Multiple Choice
Why do we feel wakeful and sleepy on a 24-hour schedule?
A) The body responds to changes in the temperature and lighting of the environment.
B) An area in the brain generates this rhythm.
C) Muscular activity produces lactate, which leads to sleepiness.
D) A feedback cycle among several endocrine organs generates this rhythm.
Correct Answer:
Verified
Correct Answer:
Verified
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