Hot and Cold

Warm‑bloodedanimals—endotherms—canregulatetheirownbodytemperature.Cold‑bloodedanimals— ectotherms—cannot.

Isthisanimalanendothermor ectotherm?

endotherm

ectotherm

Correct

Birdsareendotherms.Birdscangenerateheat internally.

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Isthisanimalanendothermor ectotherm?

endotherm

ectotherm

Correct

Butterfliesareectotherms.Ectothermsareknownascold‑blooded animals.

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Isthisanimalanendothermor ectotherm?

endotherm

ectotherm

Correct

Arhinocerosisanendotherm.Mostmammals,birds,andpeopleare endotherms.

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Isthisanimalanendothermor ectotherm?

endotherm

ectotherm

Correct

Foxesareendotherms.Theyrequiremorefoodtostay warm.

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Isthisanimalanendothermor ectotherm?

endotherm

ectotherm

Correct

Frogsareectotherms.Almostallreptiles,fish,insects,amphibians,andarachnidsare ectotherms.

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Isthisanimalanendothermor ectotherm?

endotherm

ectotherm

Correct

Alligatorsareectotherms.Ectothermsarefoundmostlyinwarm climates.

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