MS-LS4-6: Definitions, Key Concepts & Examples

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Natural Selection

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Process where organisms better adapted to environment tend to survive and produce more offspring.

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Trait

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A characteristic or feature of an organism.

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Population

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A group of individuals of the same species living in a specific area.

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Adaptation

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A trait that helps an organism survive and reproduce.

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Genetic Variation

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Differences in DNA among individuals.

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Survival of the Fittest

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Concept that individuals best adapted to environment survive.

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Evolution

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Change in the heritable traits of a population over generations.

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Selective Pressure

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Environmental factors that influence which traits are advantageous.

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Mutation

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A change in DNA sequence.

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Fitness

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Ability of an organism to survive and reproduce.