An '''endothermic process''' is any process that uses up more [[heat]] than it produces.
An '''endothermic process''' is any process that uses up more [[heat]] than it produces.
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In [[biology]], a creature is endothermic if it has an internal mechanism by which it can regulate its own body temperature, keeping it constant.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref> A [[chemical reaction]] is endothermic if it requires the input of heat to go forward.
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In [[biology]], a creature is endothermic if it has an internal mechanism by which it can regulate its own body temperature, keeping it constant.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref>
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This is sometimes referred to as being "''warm blooded''".
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A [[chemical reaction]] is endothermic if it requires the input of heat to go forward.