{"id":87007,"date":"2025-06-01T04:26:08","date_gmt":"2025-06-01T04:26:08","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87007"},"modified":"2025-06-01T04:26:08","modified_gmt":"2025-06-01T04:26:08","slug":"what-are-circadian-rhythms","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/what-are-circadian-rhythms\/","title":{"rendered":"What are ‘circadian rhythms’?"},"content":{"rendered":"

What are ‘circadian rhythms’?<\/p>\n

[amp_mcq option1=”Daily responses of animals to light conditions” option2=”Growth of plant tip with changing light direction” option3=”Annual responses of living organisms to light conditions” option4=”Daily responses of animals to water availability” correct=”option1″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC Geoscientist – 2023<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nCircadian rhythms are daily responses of animals to light conditions.
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\nCircadian 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.
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\nWhile primarily synchronized by light, other cues like temperature, social interaction, and food availability can also influence circadian rhythms. These rhythms are fundamental to chronobiology and are found across diverse life forms, from bacteria to humans.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

What are ‘circadian rhythms’? [amp_mcq option1=”Daily responses of animals to light conditions” option2=”Growth of plant tip with changing light direction” option3=”Annual responses of living organisms to light conditions” option4=”Daily responses of animals to water availability” correct=”option1″] This question was previously asked in UPSC Geoscientist – 2023 Download PDFAttempt Online Circadian rhythms are daily responses of … <\/p>\n

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