NEET 2011 Biology question
The 24 hour (diurnal) rhythm of our body such as the sleep-wake cycle is regulated by the hormone :
Answer: (4)
Solution
Melatonin, secreted by the pineal gland, regulates the 24-hour (diurnal/circadian) rhythm of the body, including the sleep-wake cycle, body temperature and pigmentation. Calcitonin (thyroid)
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