A circadian rhythm refers to a cycle:_____________?
Correct answer: B. Of bodily activity approximately 24 hours in length.
- A. Of sexual receptivity caused by hormone cycles.
- B. Of bodily activity approximately 24 hours in length.
- C. Of emotional arousal.
- D. During which various bodily systems are in phase.Get Study Guides
Explanation
A circadian rhythm is an approximately 24-hour biological cycle, such as the sleep-wake cycle and daily fluctuations in body temperature. The term comes from circa, meaning about, and dies, meaning day.
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