Evolution

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Who proposed the theory of natural selection?

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Charles Darwin proposed the theory of natural selection, which states that organisms best suited for their environment are more likely to survive and reproduce.

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What is evolution?

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Evolution is defined as a change in the frequency of an allele in a population over time.

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What do homologous structures indicate?

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Homologous structures indicate that species have a common ancestor.

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What is an adaptation?

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An adaptation is a phenotype that improves an organism's chance of survival in its environment.

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What characteristic did Darwin observe in Galapagos finches?

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Darwin observed that the finches had different beak shapes adapted to their specific diets.

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What is the role of mutations in evolution?

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Mutations introduce new genetic variations, which can lead to changes in traits that may be beneficial for survival.

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What is speciation?

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

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What is the significance of genetic drift?

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Genetic drift is a mechanism of evolution that causes random changes in allele frequencies in a population.

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What is the difference between natural selection and artificial selection?

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Natural selection occurs through environmental pressures, while artificial selection is driven by human choices.

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What evidence supports the theory of evolution?

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Evidence supporting evolution includes fossil records, comparative anatomy, and molecular biology.

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