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RSB [31]
3 years ago
6

Acts as an internal timer and makes animals nocturnal or diurnal

English
1 answer:
tangare [24]3 years ago
8 0

Answer:

Circadian rhythm, or circadian clock, is an internal biological clock that regulates sleeping and feeding patterns, as well as a whole host of other biological functions in all living organisms. Organisms most active in the daytime are diurnal, humans included, whereas nocturnal organisms come alive at night.

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guapka [62]

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3 years ago
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gogolik [260]

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7 0
3 years ago
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Answer:

I gotchu!!

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