AKS 9/10 Evolutionary History

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Charles Darwin

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Proposed the theory of natural selection

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Analogous structures

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Different origin, similar function

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Extinct

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No longer existing species

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Comparative morphology

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Study of body structures across species

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Acquired traits

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Traits gained during a lifetime, not inherited

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Jean Baptiste Lamarck

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Proposed early theory of evolution

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Theory

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Well-substantiated explanation of some aspect of the natural world

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Evolution

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Change in species over time

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Homologous structures

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Similar origin, different function

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Fossil

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Preserved remains of ancient organisms