Circadian rhythms are partially controlled by variations in the levels of a hormone produced the pineal gland called
A)melatonin.
B)serotonin.
C)acetylcholine.
D)GABA.

Name: Circadian rhythms are partially controlled by variations in the levels of a hormone produced the pineal gland called A)melatonin. B)serotonin. C)acetylcholine. D)GABA.
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Question

Quizplus · Accepted Answer

Melatonin is the hormone produced by the pineal gland that helps regulate sleep-wake cycles and is closely involved in the body's circadian rhythms.

Circadian Rhythms Are Partially Controlled by Variations in the Levels