The 24 hour (diurnal) rhythm of our body such as the sleep-wake cycle is regulated by the hormone (a) calcitonin (b) prolactin (c) adrenaline (d) melatonin.

The 24 hour (diurnal) rhythm of our body such as the
sleep-wake cycle is regulated by the hormone
(a) calcitonin
(b) prolactin
(c) adrenaline
(d) melatonin.
by

1 Answer

Answer :

(d) melatonin.
by

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