| − | In biology, an [[organism]] is called '''ectothermic''' if it lacks an internal mechanism for regulating body heat.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref> | + | In biology, an [[organism]] is called '''ectothermic''' if it lacks an internal mechanism for regulating body heat.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref> Thus ectothermic organisms must gain body heat through sunlight such as by sun basking. The misnomer "cold blooded" means ectothermic. The most well-known ectothermic organisms are amphibians and reptiles. |