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8 Cards in this Set
- Front
- Back
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RELATIVE FITNESS
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the contribution an individual makes to the gene pool of the next generation, relative to the contributions of other individuals
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DIRECTIONAL SELECTION
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natural selection in which individuals at one end of the phenotypic range survive or reproduce more successfully than do other individuals
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DISRUPTIVE SELECTION
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natural selection in which individuals on both extremes of a phenotypic range survive or reproduce more successfully than do individuals with intermediate phenotypes
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STABILIZING SELECTION
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natural selection in which intermediate phenotypes survive or reproduce more successfully than do extreme phenotypes
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SEXUAL SELECTION
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a form of natural selection in which individuals with certain inherited characteristics are more likely than other individuals to obtain mates
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SEXUAL DIMORPHISM
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marked differences between the secondary sex characteristics of males and females
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INTRASEXUAL SELECTION
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a direct competition among individuals of one sex for mates of the opposite sex
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INTERSEXUAL SELECTION
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selection whereby individuals of one sex are choosy in selecting their mates from individuals of the other sex; also called mate choice
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