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Question

Melatonin is secreted by.

A
Pineal body
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B
Skin
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C
Pituitary gland
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D
Thyroid
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Solution

The correct option is A Pineal body
Melatonin is a hormone secreted by the pineal gland in response to darkness (low light) also known as the "hormone of darkness". It regulates the sleep-wake cycle.
So, option A is the correct option.

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