What is regarded as the physical site of our biological clock?

Question

Quizplus · Accepted Answer

The suprachiasmatic nucleus (SCN) is regarded as the physical site of our biological clock, responsible for regulating the circadian rhythm. It is located in the hypothalamus of the brain. The thalamus (A) is responsible for relaying sensory information to the cortex, and the pineal gland (B) produces melatonin, which helps regulate sleep, but it is not considered the physical site of our biological clock. The heart (D) does not play a significant role in regulating the circadian rhythm.

What Is Regarded as the Physical Site of Our Biological