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NEET UG BIOLOGY MCQ: CHEMICAL COORDINATION AND INTEGRATION
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Understanding
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[A]: Behavioural activities that are correlated with a one week cycle under fairly constant conditions are called circadian rhythms.
[R]: Experiments have proved that biological clock is entirely internal.
[R]: Experiments have proved that biological clock is entirely internal.
View answer and explanation
Correct option: D
Both A and R are false
Option D (Both A and R are false) is correct because behavioral activities correlated with a one-week cycle are called circaseptan rhythms, not circadian rhythms, and the biological clock is not entirely internal as it is influenced by external cues like light.
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