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Early scientists proposed ideas about evolution.  

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Early scientists proposed ideas about evolution.  

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Early scientists proposed ideas about evolution.
• Evolution is the biological change process by which

descendants come to differ from their ancestors.

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There are several significant 18th century naturalists.

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There are several significant 18th century naturalists.

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here they are >

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classification system from kingdom to species

(1707-1778) Founder of taxonomy, the branch of biology concerned with naming and classifying organisms. Developed two part system of naming organisms.

Theories of geologic change set the stage for Darwin’s theory.

There were three theories of geologic change.
– catastrophism
– gradualism
– uniformitarianism

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- Naturalist who proposed that perhaps a few founding species were created by God, then changed over time.

species shared ancestors rather than arising separately

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more-complex forms developed from less- complex forms

All living things were descended from a common ancestor, complex life forms arose from less complex life, Darwin's grandfather

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- Another scientist who focused on evolution. He believed that individuals could acquire traits to match their environment, and then pass these traits on to their offspring.

environmental change leads to use or disuse of a structure