Which of the Following Is TRUE

question 532

Multiple Choice

Which of the following is TRUE?

• A) The suprachiasmatic nucleus regulates circadian rhythms through the release of the neurotransmitter melatonin.
• B) Circadian rhythms remain stable regardless of the sleep-wake schedule people adopt.
• C) There are more than 100 different bodily processes that systematically vary over the course of each day, including blood pressure, the secretion of hormones, and pain sensitivity.
• D) There are two important neurotransmitters, serotonin and dopamine, that regulate the 24-hour biological clock.