Evolution Test Review

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What is the fossil record?

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The fossil record is a historical sequence of life on Earth, providing evidence that organisms have changed over time.

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How do fossils support the theory of evolution?

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Fossils provide evidence that organisms have changed over time, showing a progression of species.

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What is the founder effect?

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The founder effect is a form of genetic drift that occurs when a small group of individuals establishes a new population, leading to reduced genetic diversity.

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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 are homologous structures?

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Homologous structures are anatomical features in different species that share a common ancestry, indicating evolutionary relationships.

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What are vestigial structures?

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Vestigial structures are remnants of organs or structures that had a function in an early ancestor but are no longer functional in the current organism.

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What is embryology in the context of evolution?

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Embryology is the study of embryos of various organisms, showing similarities in development that suggest a common ancestor.

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What is punctuated equilibrium?

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Punctuated equilibrium is a pattern of evolution characterized by short bursts of significant change followed by long periods of stability.

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What is gradualism?

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Gradualism is the theory that evolution occurs slowly and steadily over long periods of time.

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What is speciation?

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Speciation is the process by which new species arise from existing species due to evolutionary changes.