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myrzilka [38]
3 years ago
14

Rem sleep ends when there is a rise in _____, which increase the level of forebrain activity nearly to the awakened state.

Biology
1 answer:
Vera_Pavlovna [14]3 years ago
8 0
Rem sleep ends when there is an increase in the level of serotonin and norepinephrine secreted.<span />
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