19_Mechanisms_of_Evolution_Nat_Sel_Feb_15_

19_Mechanisms_of_Evolution_Nat_Sel_Feb_15_ - Natural Selec...

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Natural’Selec+on’(Feb.’15 th ) Defne:’stabilizing/disrup+ve/direc+onal’selec+on,’ftness’trade-o±.’[ Knowledge ]’ Explain’why’evolu+on’is’not’progressive’( i.e., moving’towards’‘per²ec+on³).’ [ Comprehension ]’ Describe’why’there’are’limits’to’adap+ve’evolu+on’( i.e., ’why’organisms’can’never’be’ per²ectly’adapted’to’their’environment).’[ Comprehension ]’ Compare’&’contrast’the’di±erent’types’o²’selec+on,’discussing’their’e±ects’on’ gene+c’varia+on’and’mean’character’value’within’a’popula+on.’[ Comprehension, Analysis ]’ Iden+²y,’given’a’scenario,’which’²orm(s)’o²’natural’selec+on’is/are’at’work.’[ Analysis ]’ Predict’given’a’descrip+on,’the’outcome’o²’a’scenario/experiment’i²’selec+on’is’ ac+ng.’[ Comprehension, Analysis, Applica7on ]’ Provide’an’example’o²’a’ftness’trade-o±.’[ Comprehension ]’ Discuss’adapta+ons,’commen+ng’on’why:’there’are’limits’to’adapta+on;’not’all’traits’ are’adap+ve;’why’an’adapta+on’is’not’universally’good;’and’adapta+ons’always’ represent’compromises’(how’an’organism³s’phenotype’always’represents’a’ compromise’between’the’adap+ve’values’o²’mul+ple’traits.’[ Comprehension ]’
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Survival’of’the’alleles’that’increase’Ftness’ ±itness’ à ’measure’of’ rela%ve’
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19_Mechanisms_of_Evolution_Nat_Sel_Feb_15_ - Natural Selec...

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