Multiple Choice
The principal secretion of the pineal gland is _______, which is an ______ hormone that is secreted during the _______ phase/hours of the day.
A) melatonin; peptide; dark
B) somatocrinin; amine; light
C) melatonin; amine; dark
D) growth hormone; peptide; dark
Correct Answer:

Verified
Correct Answer:
Verified
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