Evolution

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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, indicating evolutionary relationships.

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What are fossils?

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Fossils are the solidified remains or imprints of once-living organisms, providing evidence of past life.

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What is natural selection?

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

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Who is known for the theory of natural selection?

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Charles Darwin is known for his work on the theory of natural selection, particularly through his observations on the Galapagos Islands.

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What are adaptations?

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Adaptations are physical or behavioral characteristics that help an organism survive and reproduce in its environment.

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What is the significance of vestigial structures?

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Vestigial structures are remnants of organs or structures that had a function in an early ancestor but are no longer useful in the current organism.

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What is the role of DNA in evolution?

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DNA carries genetic information that can mutate and be passed on to future generations, driving evolutionary change.

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What is the difference between homologous and analogous structures?

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Homologous structures arise from a common ancestor, while analogous structures serve similar functions but do not share a common evolutionary origin.

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What is genetic variation?

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Genetic variation refers to the differences in DNA among individuals within a population, which is essential for natural selection.

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What is speciation?

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Speciation is the evolutionary process by which populations evolve to become distinct species.