Question

question 5
3 tries left
which of the following releases melatonin, which helps regulate sleep - wake cycles?
pancreas
adrenal glands
pineal gland
thyroid gland

Explanation:

The pineal gland is responsible for releasing melatonin, a hormone that helps regulate the sleep - wake cycle. The pancreas is involved in digestion and blood sugar regulation, the adrenal glands are related to stress - response hormones, and the thyroid gland is involved in metabolism regulation.

Answer:

pineal gland