Biological rhythms and the onset of sleep are regulated by ____ produced by the ____.
A) cortisol; pineal gland
B) melatonin; pituitary gland
C) parathyroid hormone; parathyroid gland
D) melatonin; pineal gland
E) cortisol; adrenal gland

Question

Quizplus · Accepted Answer

Melatonin, produced by the pineal gland, plays a crucial role in regulating sleep patterns and biological rhythms.

Biological Rhythms and the Onset of Sleep Are Regulated by ____