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  2. Homeostasis - Wikipedia

    en.wikipedia.org/wiki/Homeostasis

    An actuary may refer to risk homeostasis, where (for example) people who have anti-lock brakes have no better safety record than those without anti-lock brakes, because the former unconsciously compensate for the safer vehicle via less-safe driving habits. Previous to the innovation of anti-lock brakes, certain maneuvers involved minor skids ...

  3. Allostatic load - Wikipedia

    en.wikipedia.org/wiki/Allostatic_load

    Homeostasis is the regulation of physiological processes, whereby systems in the body respond to the state of the body and to the external environment. [18] The relationship between allostasis and allostatic load is the concept of anticipation. Anticipation can drive the output of mediators. Examples of mediators include hormones and cortisol.

  4. Excretory system - Wikipedia

    en.wikipedia.org/wiki/Excretory_system

    Excretory system. The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body. The dual function of excretory systems is the elimination of the waste products of metabolism and to drain the ...

  5. Kleptothermy - Wikipedia

    en.wikipedia.org/wiki/Kleptothermy

    e. In biology, kleptothermy is any form of thermoregulation by which an animal shares in the metabolic thermogenesis of another animal. It may or may not be reciprocal, and occurs in both endotherms and ectotherms. [ 1] One of its forms is huddling. However, kleptothermy can happen between different species that share the same habitat, and can ...

  6. Energy homeostasis - Wikipedia

    en.wikipedia.org/wiki/Energy_homeostasis

    Energy homeostasis. In biology, energy homeostasis, or the homeostatic control of energy balance, is a biological process that involves the coordinated homeostatic regulation of food intake (energy inflow) and energy expenditure (energy outflow). [1][2][3] The human brain, particularly the hypothalamus, plays a central role in regulating energy ...

  7. Downregulation and upregulation - Wikipedia

    en.wikipedia.org/wiki/Downregulation_and_up...

    The complementary process that involves increase in quantities of cellular components is called upregulation.[1] An example of downregulation is the cellular decrease in the expression of a specific receptor in response to its increased activation by a molecule, such as a hormone or neurotransmitter, which reduces the cell's sensitivity to the ...

  8. Self-perpetuation - Wikipedia

    en.wikipedia.org/wiki/Self-perpetuation

    Look up self-perpetuation in Wiktionary, the free dictionary. Self-perpetuation, the capability of something to cause itself to continue to exist, is one of the main characteristics of life. Organisms ' capability of reproduction leads to self-perpetuation of the species, if not to the individual. Populations self-perpetuate and grow.

  9. Thermoregulation - Wikipedia

    en.wikipedia.org/wiki/Thermoregulation

    Thermoregulation. Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different. A thermoconforming organism, by contrast, simply adopts the surrounding temperature as its own body temperature, thus avoiding the need for internal thermoregulation.