Evolution Review

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What is evolution?

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Evolution is the process through which species change over time through variations and natural selection.

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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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What is the significance of DNA comparisons in evolutionary biology?

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DNA comparisons help scientists determine the genetic relatedness between species, providing evidence for common ancestry.

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What are analogous structures?

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Analogous structures are features in different species that serve similar functions but do not share a common ancestry.

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What is a common ancestor?

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A common ancestor is a species from which two or more different species have evolved.

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What role does natural selection play 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 fossil record?

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The fossil record is the collection of all known fossils and their placement in the earth's strata, providing evidence of past life and evolution.

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What is speciation?

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Speciation is the evolutionary process by which populations evolve to become distinct species.

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What evidence supports the theory of evolution?

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Evidence includes the fossil record, comparative anatomy, molecular biology, and biogeography.

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What is adaptive radiation?

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