Circadian rhythms are endogenous biological rhythms that oscillate with a period of approximately 24 hours. They are synchronized by environmental cues, most notably light and dark cycles, and govern various physiological processes and behaviors in living organisms, including sleep-wake cycles, feeding patterns, and hormone release. They represent adaptations to the Earth's daily cycle of light and darkness.
What are 'circadian rhythms'?
Asked in UPSC Geoscientist 2023 · Topic: Taxonomy (Taxonomic Characters and Evidence (Morphological, Anatomical, Cytological, Molecular))
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