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Fossils are examples of materials that paleontologists use in studying evolution.

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They are history of life as documented by fossils.

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They are traces of organisms that lived in the past and were preserved by nature.

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The remains or imprints of organisms from earlier geological periods preserved in sedimentary rock.

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Can be homologous anatomy or analogous anatomy.

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Comparative study of the body structures of different species of animals to understand the adaptive changes they have undergone.

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Comparison of the structure that some species experienced in order to adapt from their common ancestors.

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Organisms produce other similar organisms through sexual reproduction, which allows the line of genetic material to be maintained and generations to be linked.

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Genetic information is passed from generation to generation through inherited units of chemical information.

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It controls the development, maintenance and reproduction of organisms.