Evolution Review

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What are body parts that share a common function but not structure called?

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Analogous structures are body parts that serve similar functions but have different evolutionary origins.

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NGSS.MS-LS4-2

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What do we call features that have different functions but similar structures due to a common ancestor?

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Homologous structures are features that are similar in structure but serve different functions, indicating a common ancestor.

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NGSS.MS-LS4-2

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What is the term for the evolution of a new species from an existing species?

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Speciation is the process through which new species arise from existing species.

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What is a feature that allows an organism to survive better in its environment called?

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An adaptation is a characteristic that enhances an organism's ability to survive and reproduce in its environment.

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NGSS.MS-LS4-4

Front

What best describes punctuated equilibrium in evolution?

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Punctuated equilibrium is a theory that suggests evolution occurs rapidly in short bursts, followed by long periods of stability.

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What are vestigial structures?

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Vestigial structures are remnants of organs or structures that had a function in an early ancestor but are no longer functional in the current organism.

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NGSS.MS-LS4-2

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What is natural selection?

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Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

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What is genetic variation?

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Genetic variation refers to the differences in DNA among individuals within a population, which can lead to different traits.

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NGSS.MS-LS4-4

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What is the significance of fossils in understanding evolution?

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Fossils provide evidence of past life forms and show how species have changed over time, supporting the theory of evolution.

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What is the difference between structural adaptation and functional adaptation?

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Structural adaptation involves physical features of an organism, while functional adaptation refers to how those features work to help the organism survive.

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