| − | In [[biology]], a creature is considered 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> More generally, 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 reation]] is endothermic if it requires the input of heat to go forward. |