Animals with a constant body temperature such as mammals an…

Biology Ecosystem Structure and Function, Productivity and Decomposition Single Correct MCQ

Published on: August 14, 2026

Animals with a constant body temperature such as mammals and birds require more food than do animals with changing body temperature such as reptiles and fish. Why?

Much of the food is utilised to produce heat to keep warm

Warm-blooded animals waste more food than cold-blooded animals

Cold-blooded animals digest their food more efficiently than warm-blooded animals

None

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The correct answer is:

Mammals and birds maintain a constant body temperature, which requires energy.

So a large part of their food is used to produce heat and keep the body warm.

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