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

Name: What is regarded as the physical site of our biological clock?
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The suprachiasmatic nucleus, located in the hypothalamus region of the brain, is regarded as the physical site of our biological clock. It regulates our circadian rhythm and helps maintain our sleep-wake cycle. The other options given, stomata formae, the pineal gland, and the heart, do not play a significant role in regulating our circadian rhythm.

What Is Regarded as the Physical Site of Our Biological