Phylogeny

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What is phylogeny?

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The study of the evolutionary history of a species.

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What is speciation?

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The formation of a new species by evolution from pre-existing species.

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What is extinction?

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The elimination of a species.

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What does a cladogram represent?

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A diagram that shows the evolutionary relationships among various biological species.

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What is the outgroup in a cladogram?

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A species or group that is closely related to the ingroup but not part of it, used for comparison.

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What is endosymbiotic theory?

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The theory that explains the origin of eukaryotic cells from prokaryotic organisms through symbiotic relationships.

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What is coevolution?

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The process where two or more species influence each other's evolutionary path.

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What is adaptive radiation?

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The rapid evolution of diversely adapted species from a common ancestor.

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What is gradualism in evolution?

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The theory that evolution occurs slowly and steadily over long periods of time.

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What is punctuated equilibrium?

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The theory that evolution occurs in rapid bursts followed by long periods of stability.