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Merra Merra
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9 years ago
REM sleep comprises approximately ____ percent of total sleep time every night.
A. 5
B. 20
C. 50
D. 80
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Drugs, Behavior, and Modern Society

Drugs, Behavior, and Modern Society


Edition: 8th
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NayaNaya
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9 years ago
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Merra Author
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#2
9 years ago
When I did my chapter review I couldn't find this in the textbook, so glad I found this forum.
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#3
9 years ago
You're very welcome
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