Bio 5.1 Evolution and Selection Vocab

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Antibiotic Resistance

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When bacteria are not able to be killed by a medicine

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Biological Resistance

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When living things evolve to survive something that used to kill them

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Descent With Modification

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Small changes passed from parents to offspring over generations

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Directional Selection

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Natural selection that favors one extreme form of a trait

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Disruptive Selection

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Natural selection that favors both extremes of a trait, not the middle

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Stabilizing Selection

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Natural selection that favors the average or middle form of a trait

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Adaptation

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A genetic change that helps an organism survive better in its environment

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Analogous Structures

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Body parts with similar functions but come from different ancestors

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Artificial Selection

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When humans choose which traits to breed in plants or animals

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Biochemistry

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The study of the chemical processes inside living things