Evidence of Evolution

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What is homology in the context of evolution?

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Homology refers to the similarity in structure or function between different species that arises from a common ancestor.

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NGSS.MS-LS4-2

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What is analogy in evolutionary biology?

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Analogy refers to similarities in function or appearance between species that do not share a common ancestor, often due to convergent evolution.

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NGSS.HS-LS4-4

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What evidence do similar bone structures provide in evolutionary biology?

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Similar bone structures suggest that the organisms may have developed from a common ancestor.

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NGSS.MS-LS4-2

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What does a very similar DNA sequence indicate about two organisms?

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It indicates that the two organisms are closely related and likely share a recent common ancestor.

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NGSS.MS-LS4-2

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Which species is most closely related to toothed whales based on DNA similarity?

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Baleen whales are most closely related to toothed whales.

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NGSS.MS-LS4-2

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What does the fossil record show about the age of different layers?

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The fossil record shows that deeper layers are generally older than those above them.

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NGSS.MS-ESS1-4

NGSS.MS-LS4-1

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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 but are no longer useful, indicating evolutionary change.

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NGSS.MS-LS4-2

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How can embryonic development provide evidence for evolution?

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Similarities in embryonic development among different species suggest a common ancestry.

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NGSS.MS-LS4-3

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What is the role of natural selection in evolution?

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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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NGSS.MS-LS4-1

NGSS.MS-LS4-4

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What is genetic drift?

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Genetic drift is a mechanism of evolution that refers to random changes in the frequency of alleles in a population.