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SpiderX SpiderX
wrote...
Posts: 4316
9 years ago
Melatonin is a hormone that:
a.   fluctuates on about a 90-minute cycle.
b.   is secreted largely during hours of darkness.
c.   is secreted largely during hours of daylight.
d.   increases alertness and wakefulness.
Textbook 
Psychology with DSM-5

Psychology with DSM-5


Edition: 11th
Authors:
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NellyNelly
wrote...
Top Poster
Posts: 4220
9 years ago
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SpiderX Author
wrote...
9 years ago
Love psychology, thanks for the lead. Your answer came out right Smiling Face with Open Mouth
wrote...
9 years ago
You're welcome Slight Smile Please vote best answer!
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