Differentiate between cold blooded and hot blooded organisms.

Asked by somyap | 22nd Apr, 2010, 07:36: AM

Expert Answer:

Cold-blooded" animals (ectotherms) have their body temperature regulated by interactions with the environment, while "warm-blooded" (endothermic) animals have an internal temperature kept constant by homeostatic (stability-ensuring) mechanisms.

Warm-blooded animals need about 3-10 times more food to survive than cold-blooded animals. Accordingly, they must be 3-10 times better at obtaining food, putting them on an entirely different metabolic and evolutionary level.


Cold-blooded animals need to maintain several sets of enzymes for their biological processes, because enzymes are very sensitive to temperature, but warm-blooded animals can just maintain one set.

The most useful advantage of being warm-blooded is the stamina boost, however. A warm-blooded creature can outrun a cold-blooded predator as long as they avoid the initial attack, a warm-blooded predator can outrun cold-blooded prey, and warm-blooded animals can forage for a longer time.

Answered by  | 22nd Apr, 2010, 10:49: AM

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