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endotherm |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.12 sec. |
endothermSo-called warm-blooded animals; that is, those that maintain a constant body temperature independent of the environment. The endotherms include the birds and mammals. If heat loss exceeds heat generation, metabolism increases to make up the loss or the animal shivers to raise its body temperature. If heat generation exceeds the heat loss, mechanisms such as panting or perspiring increase heat loss. Unlike ectotherms, endotherms can be active and survive at quite low external temperatures, but because they must produce heat continuously, they require high quantities of “fuel” (i.e., food). How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The melting temperature of a polymer reflects the melting of crystals formed during primary and secondary crystallization, This frequently gives rise to multiple endotherms in a DSC heating scan, where the upper peak corresponds to melting of primary crystals and the lower peak corresponds to melting of crystals formed during secondary crystallization (e. West Nile virus (WNV) has been reported in a variety of species but primarily endotherms. Although paleontologists once saw them as sluggish ectotherms, many now envision dinosaurs as endotherms. |
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