Rehabilitation Sciences 3760A/B Midterm: [Rehabilitation Sciences 3760A/B] - Midterml Exam Guide - Comprehensive Notes fot the exam (39 pages long!)
29 Nov 2016
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R e h a b i l i t a t i o n s c i e n c e s 3 7 6 0 a / b. Relationship between developing organism and the environment it finds itself in. Given genotypes give rise to different phenotypes depending on environmental conditions. Responses to environment may be expressed in the offspring rather than the parent: example: crustacean daphnia born with a defensive helmet" only if the mother has been exposed to the chemical traces of a predator. Not all effects of the environment are adaptive: variations within species may be affected by temperature, acidity, nutrient and water availability, and toxin exposure. If developmental conditions are not optimal, individual can cope, but with cost to its reproductive success. Various developmental pathways triggered by environmental events may be induced during sensitive, brief periods in development: outside these periods, environmental influences that set characteristics may have little/no effect.
