Editing Endotherm (section)

==Contrast between thermodynamic and biological terminology==
Students encounter a source of possible confusion between the terminology of physics and biology. Whereas the thermodynamic terms "[[exothermic]]" and "[[endothermic]]" respectively refer to processes that give out heat energy and processes that absorb heat energy, in biology the sense is effectively reversed. The [[Metabolism|metabolic]] terms "ectotherm" and "endotherm" respectively refer to organisms that rely largely on external heat to achieve a full working temperature, and to organisms that produce heat from within as a major factor in controlling their body temperatures.<ref>{{Cite journal| vauthors = Humphries MH |date=2010-11-01|title=Endotherm Metabolism Too Hot to Handle|journal=Journal of Experimental Biology|volume=213|issue=21|pages=iv|doi=10.1242/jeb.051300|doi-access=free}}</ref>