are humans warm blooded or cold blooded
Heat is produced in the warm-blooded human body by the catabolism of foods in proportion to the amount of work performed by the tissues in the body. Heat is lost from the body by evaporation, radiation, conduction, and convection. About 80% of the body heat that is dissipated in humans is lost through the skin. humans or carbon based homo sapiens are not cold blooded, and if they were, the only phase of evolution that is close enough to be cold blooded would be the evolutionary form right after the chimpanzee also known as the lucy. On the other hand, some animals typically considered endothermic, like chipmunks, maintain a high body temperature during active periods, but slow their metabolism and drop their body temperature to extremely low levels during inactive periods like hibernation. Warm-blooded animal species can maintain a body temperature higher than their environment. In particular, homeothermic species maintain a stable body temperature by regulating metabolic processes. The only known homeotherms are birds and mammals. Other species have various degrees of thermoregulation. Etymology: AS, wearm + blod. having a relatively high and constant body temperature, such as the temperatures maintained by humans, other mammals, and birds, despite changes in environmental temperatures. Ectotherms And Andorthermic. Animals whose body temperature is determined in part by the environment are called “ectotherms.” They can have quite a high body temperature by taking advantage of external conditions, such as basking in the sun to warm up. Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content. Link to this page: <a href=http://medical-dictionary.thefreedictionary.com/Warm+blooded>warm-blooded</a>. Facebook. All mammals including all humans are warm-blooded. This means  that our body temperature is regulated at least to some extent by  our body and not totally by the outside tem…p. Cold blooded animals  can only get heat from the sun or a warm surface.  Warm blooded. Not So Cold Or Warm…. Most of us learn that insects, fish, reptiles and amphibians are cold blooded because their body temperature changes along with the external temperature, while birds and mammals are warm blooded because they maintain a high body temperature regardless of the external temperature. Cold-blooded means that at rest, the animals body temperature …is the same as that of its surroundings. Cold-blooded animals have to warm themselves up (usually by sunning them selves or by vibrating their muscles) before they become active while warmblooded animals are already warm and ready for action. Also warmblooded animals can operate at temperatures where cold-blooded animals can not (eg polar bears).
Warm blooded