Question

The ________ rhythm is the biological rhythm that occurs over approximately 24 hours.

Answer 1

The circadian rhythm is the biological rhythm that occurs over approximately 24 hours.The rhythms is defined with physical, mental and behavioral changes that follow a roughly 24-hour cycle. This rhythm is our body clock, that regulates the timing of periods of sleepiness and wakefulness throughout the day.
This 24-hour rhythm is driven by a circadian clock, and it has been widely observed in plants, animals, and  fungi.