The hormone called _________ plays an important role in synchronizing physiological function with the cycle of daylight and darkness.
A) calcitonin
B) melanin
C) melatonin
D) hepcidin
E) inhibin

Question

Quizplus · Accepted Answer

Melatonin is the hormone responsible for regulating the sleep-wake cycle and synchronizing physiological function with the cycle of daylight and darkness. Its release is stimulated by darkness and suppressed by light, allowing the body to adjust to changes in the external environment. Calcitonin is a hormone involved in calcium homeostasis, melanin is a pigment responsible for skin and hair color, hepcidin regulates iron metabolism, and inhibin is involved in regulating reproductive function. None of these hormones play a significant role in the regulation of the sleep-wake cycle.

The Hormone Called _________ Plays an Important Role in Synchronizing