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May 25, 2015

Homework Help: psych-Awake/Asleep

Posted by Melissa on Thursday, October 18, 2007 at 3:24pm.

3. Our tendency to feel wakeful and sleepy on a 24-hour basis depends mainly on
a. A cycle generated by a mechanism in the brain
b. Our perception of environmental stimuli such as heat and light
c. A cycle generated by hormone-producing organs such as the adrenal gland
d. Wear and tear on the muscles followed by a period of repair


I chose answer A. because humans have mechanisms that prepare for activity during the day and sleep at night. Is this correct?

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