Evolution and natural selection

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What is biological evolution?

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The change over time in populations of related species.

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What happens if an organism can't adapt fast enough?

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It may become extinct.

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What is the definition of fitness in the context of evolution?

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The ability to survive and reproduce in a specific environment.

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Who developed the theory of evolution by natural selection?

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Charles Darwin.

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What are variations in the context of evolution?

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A slight difference in an inherited trait between individual members of the same species.

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What is natural selection?

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The process where organisms with traits better suited to their environment tend to survive and reproduce more successfully.

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What is adaptation?

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A trait that helps an organism survive and reproduce in its environment.

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What is the significance of genetic variation in evolution?

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It provides the raw material for natural selection to act upon.

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What is a common misconception about evolution?

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That evolution is a linear process leading to 'better' organisms; it is actually a branching process.

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What role do mutations play in evolution?

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Mutations introduce new genetic variations that can be beneficial, harmful, or neutral.