Evidence for Evolution

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What does embryology reveal about the Theory of Evolution?

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Embryology shows that different species have similarities during early development, indicating a common ancestor.

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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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How do homologous structures support the idea of common ancestry?

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The presence of homologous structures in genetically different animals suggests that they evolved from a common ancestor.

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What is a vestigial structure?

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A vestigial structure is a physical feature that is present in an organism but no longer serves a significant function.

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What role does the fossil record play in understanding evolution?

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The fossil record helps scientists understand the history of life, track evolutionary changes, and provide evidence for common ancestry.

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What is the significance of comparative anatomy in evolutionary biology?

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Comparative anatomy studies the similarities and differences in the anatomy of different species, providing evidence for evolution and common ancestry.

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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 evolve independently in different species due to similar environmental pressures.

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How can molecular biology provide evidence for evolution?

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Molecular biology examines the genetic material of organisms, revealing similarities in DNA sequences that indicate common ancestry.

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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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What is the concept of adaptive radiation?

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Adaptive radiation is the process by which a single ancestral species rapidly diversifies into a wide variety of forms to adapt to different environments.