Multiple Choice
What is one indicator that sleep is NOT purely restorative?
A) Some animals need only a few hours of sleep per day (ie: elephants and giraffes) "
B) The brain sometimes gives off delta waves during sleep"
C) The number of hours of sleep needed per day is not correlated with activity levels across species"
D) All of the above"
Correct Answer:

Verified
Correct Answer:
Verified
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