Evidence of Evolution

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What are homologous structures?

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Structures with the same parts that have different functions, suggesting that organisms share a common ancestry.

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What does the comparison of DNA among organisms support?

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The theory that all species share a common ancestor.

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What is embryology?

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The study of embryos of various organisms to show a common ancestor due to similarities in development.

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How do fossils provide evidence for evolution?

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Fossils show how life forms present today are different from those in the past.

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What can be inferred about two organisms that are closely related?

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They would have very similar DNA sequences.

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What is the significance of vestigial structures in evolution?

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Vestigial structures are remnants of organs or structures that had a function in early ancestors, indicating evolutionary change.

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What is the role of natural selection in evolution?

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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 is the concept of adaptive radiation?

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Adaptive radiation is the process by which organisms diversify rapidly into a variety of forms to adapt to different environments.

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What evidence do molecular similarities provide in the study of evolution?

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Molecular similarities, such as DNA and protein sequences, indicate how closely related different species are.

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What is the importance of the fossil record in understanding evolution?

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The fossil record provides chronological evidence of the changes in species over time and shows the progression of life forms.