Question

question 2
3 tries left
the pineal gland receives instructions from the ________ to release ________.
occipital lobe, serotonin
thalamus, dopamine
spinal cord, acetylcholine
suprachiasmatic nucleus, melatonin

Explanation:

The suprachiasmatic nucleus in the hypothalamus controls the pineal gland's secretion of melatonin, which regulates sleep - wake cycles. The other options are incorrect as the occipital lobe is mainly for vision, the thalamus is a relay center not directly related to pineal gland - melatonin release in this way, and the spinal cord is not involved in this hormonal regulation.

Answer:

D. suprachiasmatic nucleus, melatonin