ANTHROP 2E03 Lecture Notes - Lecture 11: Glycophorin, Phenylalanine, Photodegradation
9 Apr 2018
School
Department
Course
Professor
Document Summary
There are uncountable examples on how culture and technology have allowed humans to adapt to multiple environments. Since the origin of anatomically modern humans, this has become out main adaptive strategy. Acclimatisation - the physiological adjustment of individual organisms to different conditions e. g. temp. altitude, photoperiod. Acclimatisation is a reversible proves: no genetic change. The length of time in which these reversible changes occur can be quite variable: short term acclimatisation = acclimation, long term acclimatisation. Increase respiration rate, heart rate, and red blood cell production when moving to high altitude environments. Immediate tanning (within 1-2 hours of exposure), fades away during the first. 24hours: delayed tanning (within 2-3 days of exposure), can last several months. Developmental adjustments anatomical or physiological changes occurring during growth or development as a result of environmental stresses. These changed can be difficult to reverse of even irreversible. Plasticity = ability of organisms to respond physiologically or developmentally to environmental stresses.
