Endotherm

Endotherms
Main article: Endotherm
To regulate body temperature, an organism may need to prevent heat gains in arid environments.
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Endotherms include birds, mammals, and insects. The advantages of endothermy are increased enzyme activity and a constant body temperature, allowing these animals to be active in cold temperatures.
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endotherms, animals — birds and mammals — that generate internally the heat needed to maintain their body temperature.
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endothermic A reaction that gives off energy. The product is in a lower energy state than the reactants.
endotherms Animals that have the ability to maintain a constant body temperature over a wide range of environmental conditions.
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endotherm
(en-doh-thurm) [Gk. endon, within + therme, heat]
An animal that uses metabolic energy to maintain a constant body temperature, such as a bird or mammal. See also Homeotherm.
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endotherm (or homeotherm)An organism that can regulate its internal temperature. Compare ectotherm.
endothermic Having a body temperature determined by heat derived from the animal's own oxidative metabolism; contrasts with ectothermic.
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Endothermic term used to describe an animal capable of controlling its body temperature internally
(endo = within inner; thermo = heat) ...
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endothermic reaction A chemical reaction that takes up heat (that is, for which DH is positive). These reactions are spontaneous. energy charge The fractional degree to which the ATP/ADP/AMP system is filled with high-energy phosphate groups.
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endothermic), breast-feed their young, and have some (although very little) hair. The whales' ancestors lived on land, and their adaptions to a fully aquatic life are quite striking: The body is fusiform, resembling the streamlined form of a fish.
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Examples of convergence are: fins or fin-like structures in fish, cuttlefish and whales; extreme similarity in alarm calls by five small birds;
endothermy
in dogs and ducks, wings of butterflies and birds.
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