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AP Biology/Unit 8: Ecology
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Endothermic Thermoregulation

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Which of the following is the best example of an endotherm, an organism that generates substantial internal heat to maintain a stable body temperature regardless of environmental conditions?

A

An animal with a metabolic rate of 1010 Joules per minute that shows significant temperature fluctuations with the environment, a hallmark of ectothermy.

B

An animal that primarily relies on external heat sources to regulate its body temperature, typical of ectothermic organisms.

C

An animal generating 5050 Joules per minute internally while maintaining a constant body temperature of 3737°C, which exemplifies endothermy.

D

An animal that produces 5050 Joules per minute internally but still experiences large fluctuations in body temperature, contradicting endothermic regulation.

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