Evidence for Evolution Check for Understanding

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What is embryology?

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The study of embryos and their development, which provides evidence for common ancestry in evolution.

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What does common ancestry mean in the context of evolution?

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It refers to the idea that different species share a common ancestor, which explains similarities in their traits.

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Why are advantageous traits more likely to be passed on to future generations?

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Because organisms with advantageous traits are more likely to survive and reproduce, passing those traits to their offspring.

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What is the significance of rock layers in understanding the age of fossils?

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The layers of rock can indicate the relative age of fossils, with deeper layers generally being older.

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How does the similarity of embryos in different species support the theory of evolution?

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Similarities in embryos suggest that these species share a common ancestor, indicating evolutionary relationships.

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What is natural selection?

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A process where organisms better adapted to their environment tend to survive and produce more offspring.

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What is a fossil?

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The preserved remains or traces of ancient organisms, providing evidence for evolution.

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What role do mutations play in evolution?

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Mutations introduce genetic variation, which can lead to new traits that may be advantageous for survival.

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What is the difference between homologous and analogous structures?

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Homologous structures are similar due to common ancestry, while analogous structures are similar due to convergent evolution.

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What is the theory of evolution?

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A scientific explanation for the diversity of life, stating that species change over time through processes like natural selection.