ANTHROP 2E03 Lecture 21: Human Adaption
13 May 2018
School
Department
Course
Professor
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Document Summary
How culture and technology have allowed humans to adapt to multiple environments. The physiological adjustment of individual organisms to different conditions (ex. temperature, altitude, photoperiod) Acclimatisation: short term, reversible process (no genetic change) Increase in respiration rate, heart rate, red blood cell count in higher altitude tanning response under increased uv radiation. Anatomical or physiological changes occurring during growth or development as a result of environmental stresses. Plasticity = ability of organisms to respond physiologically or developmentally to. Plasticity = ability of organisms to respond physiologically or developmentally to environmental stresses. Reduced body size due to lack of nutrition. Greater chest dimensions and lung capacity of those in higher altitudes. Adaptions: inheritable genetic changes that develop in populations over long periods of time. Adaptions are the result of the action of natural selection. Clearing land and stagnant water = leads to more mosquitos. Ecological changes due to human actions --> can change disease patterns.
