Evolution

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What is evolution?

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

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What is natural selection?

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

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What is adaptation?

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Adaptation is a trait that helps an organism survive and reproduce in its environment.

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What is a mutation?

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A mutation is a change in the DNA sequence of an organism's genome, which can lead to new traits.

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What is the significance of the Galapagos finches in the study of evolution?

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The Galapagos finches illustrate how species can adapt to different environments, leading to diverse beak structures based on available food sources.

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What is chemical evolution?

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Chemical evolution refers to the process by which simple organic molecules formed and eventually led to the origin of life.

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What is common ancestry?

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Common ancestry refers to the idea that different species share a common ancestor, which can be supported by anatomical and genetic similarities.

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What is the role of genetic variation in evolution?

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Genetic variation provides the raw material for natural selection, allowing populations to adapt to changing environments.

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What evidence supports the theory of evolution?

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Evidence for evolution includes fossil records, comparative anatomy, molecular biology, and observed evolutionary changes.

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What is the difference between artificial selection and natural selection?

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Artificial selection is the process by which humans breed organisms for desired traits, while natural selection occurs without human intervention.