Evidence of Evolution

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What is a homologous structure?

Back

A homologous structure is an anatomical feature in different species that is similar due to shared ancestry, indicating evolutionary relationships.

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What is a vestigial structure?

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A vestigial structure is a body part that has lost its original function through evolution, such as the human appendix.

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What does the fossil record provide evidence for?

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The fossil record provides evidence for the history of life on Earth, showing how species have changed over time.

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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 significance of common ancestry in evolution?

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Common ancestry suggests that different species share a common ancestor, which explains similarities in their structures and genetics.

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What are vestigial structures an example of?

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Vestigial structures are an example of evolutionary change, showing how species adapt over time.

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What is the role of homologous structures in understanding evolution?

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Homologous structures help scientists understand evolutionary relationships and how species have diverged from common ancestors.

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What evidence do fossils provide for evolution?

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Fossils provide evidence of past life forms and their changes over time, supporting the theory of evolution.

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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 have similar functions but do not share a common evolutionary origin.

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How do similarities in bone arrangements support evolutionary theory?

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Similarities in bone arrangements suggest that different organisms share a common ancestor, indicating evolutionary relationships.