BIOA02H3 Final: Chapter 22 notes (has all information on 2011 exam)

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17 Apr 2011
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BIOA02H3 Full Course Notes
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53. 1 what questions do biologists ask about ecology: ethology: study of animal behavior from an evolutionary perspective. Interactions related to inherited mechanisms and experience: proximate=mechanisms=how, ultimate=causes=why. Isolate a young animal so that it is deprived of all experience relevant to the behavior under study. If animal which is deprived still exhibits behavior it means that behavior if genetically coded and vice. versa: genetic experiments. generations do not overlap and offspring can"t learn behavior from parents. mistakes=costly and dangerous i. e. mating w/wrong species, avoiding predators, etc. Still not hardwired and some behaviors ae still expressed only in certain conditions. releaser: an object, event, or condition required to stimulate a behavior. response to a releaser can depend on motivational state of the animal as well: environmental control(learned) Learned behaviors in environments still have a genetically determined components i. e. imprinting: animal learns a set of stimuli during a critical. critical period: specific time in an animal"s development.

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