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Published byGiles Kelley Modified over 9 years ago
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Chapter 22 – Descent with Modification: A Darwinian View of Life
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Jean-Baptiste de Lamarck Late 1700s Inheritance of Acquired Characteristics
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Charles Darwin (1809 – 1882) At age 22, went on 5 year mapping expedition of HMS Beagle
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Influences on Darwin Thomas Malthus –“Essay on the Principle of Population” 1798 Charles Lyell –“Principles of Geology” 1830
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Influences on Darwin cont Alfred Wallace
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“On Origin of Species by Natural Selection” Population has variety Specific environment favors particular traits
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Darwin’s finches
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Artificial selection
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Homologous structures Have different function/shape but derived from same body part of common ancestor
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Fossil record
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Vestigial structures
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Embryonic development
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Convergent evolution
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Molecular record Closely related species have very similar DNA sequences
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Industrial melanism
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