Multiple Choice
Professor Cimmerian is talking to her class about some of the characteristics of early humans. She has brought up the notion that sleep initially was engaged in largely as a function of safety and served to keep early peoples safe from predators. This describes the __________ theory of sleep.
A) microsleep
B) circadian
C) restorative
D) threshold
Correct Answer:

Verified
Correct Answer:
Verified
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