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Photoperiodism

Circadian rhy...

Question

Circadian rhythms are

A

daily (24 Hr) rhythms

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B

monthly rhythms

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C

annual rhythms

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D

seasonal rhythms

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Solution

The correct option is A daily (24 Hr) rhythms
A circadian rhythm is a natural, internal process that regulates the sleep-wake cycle and repeats on each rotation of the earth roughly every daily 24 hours.

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.......... Biological rhythm with a 24-hour cycle.

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