Evolution

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What is evolution?

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Evolution is the process by which different kinds of living organisms develop and diversify from earlier forms during the history of the earth.

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What are homologous structures?

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Homologous structures are anatomical features in different species that share a common ancestry, even if they have different functions.

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Who proposed the theory of natural selection?

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Charles Darwin proposed the theory of natural selection, which explains how species evolve over time.

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What is the significance of studying embryos in evolutionary biology?

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Studying embryos helps scientists understand the evolutionary relationships between species by comparing developmental stages.

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What are vestigial structures?

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Vestigial structures are body parts that have lost their original function through evolution, such as the human appendix.

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What is the difference between analogous and homologous structures?

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Analogous structures are similar in function but do not share a common ancestry, while homologous structures share a common ancestry but may have different functions.

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What does DNA similarity indicate about species?

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DNA similarity can indicate how closely related different species are, with higher percentages suggesting a more recent common ancestor.

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What is the misconception about individual evolution?

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The misconception is that individuals undergo evolution; in reality, evolution occurs in populations over generations.

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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 role do mutations play in evolution?

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Mutations introduce genetic variation, which is essential for natural selection and the evolution of species.