Assertion : Ectotherms are able to remain active under cold conditions. Reason: Ectotherms are a...

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Assertion : Ectotherms are able to remain active under cold conditions.
Reason: Ectotherms are able to maintain a constant internal temperature, even when the temperature outside fluctuates.
(a) Both assertion and reason are true and reason is the correct explanation of assertion.
(b) Both assertion and reason are true but reason is not the correct explanation of assertion.
(c) Assertion is true but reason is false.
(d) Both assertion and reason are false.
(AIIMS)
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