Glands and the hormones they produce are known to affect behaviors. In humans, which gland and hormone are responsible for controlling the active versus sleepy circadian rhythm?

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    pituitary gland and oxytocin
    pancreas and insulin
    pineal gland and melatonin
    parathyroid gland and PTH
asked May 19, 2013 in Biology by anonymous
    

1 Answer

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pineal gland and melatonin
answered May 20, 2013 by Bioshare ~Top Expert~ (34,070 points)

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