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the tendency of a biological system to maintain relatively constant conditions in its internal environment while it continuously interacts with and adjusts to changes on the outside. Through homeostatic mechanisms, the human body maintains body temperature, the osmotic pressure of the blood, and many other things within a normal range. http://www.mercksource.com/pp/us/cns/cns_hl_dorlands_split.jsp?pg=/ppdocs/us/common/dorlands/dorland/four/000049668.htm A tendency to stability in the normal body states (internal environment) of the organism. It is achieved by a system of control mechanisms activated by negative feedback, for example a high level of carbon dioxide in extracellular fluid triggers increased pulmonary ventilation, which in turn causes a decrease in carbon dioxide concentration. http://www.mondofacto.com/facts/dictionary?homeostasis

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15y ago

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