Multiple Choice
Sleepwalking,lucid dreaming,and waking up unable to move illustrate which idea?
A) Sleep serves several functions including conservation of energy.
B) People vary genetically in their circadian rhythms.
C) Sometimes one brain area is awake while another is asleep.
D) REM sleep is more abundant at some times of night than at others.
Correct Answer:

Verified
Correct Answer:
Verified
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