Cold-blooded animals with body temperature close to environment temperature.

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Prepare for the March Mammal Madness Vocabulary Test. Use flashcards and multiple choice questions with hints and explanations to enhance your learning experience. Get yourself ready for the exciting challenge!

Multiple Choice

Cold-blooded animals with body temperature close to environment temperature.

Explanation:
How animals regulate body temperature is what this item tests. Ectotherms, or cold-blooded creatures, have body temperatures that closely follow the environment because they rely on external heat sources rather than generating heat themselves. This means their temperature tends to vary with the surroundings. In contrast, endotherms—like mammals and birds—produce heat metabolically and keep a relatively stable internal temperature. The other terms aren’t about temperature control—“species” refers to a group of organisms, and “carnivore” describes a diet.

How animals regulate body temperature is what this item tests. Ectotherms, or cold-blooded creatures, have body temperatures that closely follow the environment because they rely on external heat sources rather than generating heat themselves. This means their temperature tends to vary with the surroundings. In contrast, endotherms—like mammals and birds—produce heat metabolically and keep a relatively stable internal temperature. The other terms aren’t about temperature control—“species” refers to a group of organisms, and “carnivore” describes a diet.

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