Evolution Review

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What is evolution?

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Evolution is the process through which species change over time through genetic variations and natural selection.

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What is natural selection?

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Natural selection is the mechanism by which individuals with favorable traits are more likely to survive and reproduce.

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What is genetic variation?

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

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Why do some species survive environmental changes better than others?

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Species with greater genetic diversity have a better chance of survival because they may possess traits that allow them to adapt.

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What is a common ancestor?

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A common ancestor is a species from which two or more different species have evolved.

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What evidence supports evolution?

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Evidence for evolution includes fossil records, anatomical similarities, and genetic similarities among species.

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What role do mutations play in evolution?

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Mutations are changes in DNA that can create new traits, contributing to genetic variation and evolution.

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What is the significance of anatomical similarities in different species?

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Anatomical similarities suggest that species may share a common ancestor and have evolved from it.

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What is the Theory of Natural Selection?

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The Theory of Natural Selection states that organisms with advantageous traits are more likely to survive and reproduce.

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How does competition affect evolution?

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Competition for resources can lead to natural selection, where only the fittest individuals survive.

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