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What does it mean for an animal to be an ectotherm

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Ectotherm. biology. Ectotherm, any so-called cold-blooded animal—that is, any animal whose regulation of body temperature depends on external sources, such as sunlight or a heated rock surface. The ectotherms include the fishes, amphibians, reptiles, and invertebrates.
User Frogb
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Answer:

Ectotherm, any so-called cold-blooded animal, any animal whose regulation of body temperature depends on external sources, such as sunlight or a heated rock surface.

Brainliest always accepted! ;)

User Toluene
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