BIO 124 Chapter 19: Chapter 19 Notes

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Darwin noted that current species are descendants of ancestral species. Evolution can be defined by darwin"s phrase descent with modification o. Evolution can be viewed as both a pattern and a process. 19. 1 the darwinian revolution challenged traditional views of young earth inhabited by unchanging. The greek philosopher aristotle ( 384-322 bce) viewed species as fixed and arranged them on a scala naturae (ladder of nature) The old testament holds that species were individually designed by god and therefore perfect. Carolus linnaeus interpreted organismal adaptations as evidence that the creator had designed each species for a particular purpose. Linnaeus was the founder of taxonomy, the branch of biology concerned with classifying organisms o. Developed the binomial format (binomial nomenclature) for naming species (for example, homo sapiens) The study of fossils helped to lay the groundwork for darwin"s ideas. Fossils are remains or traces of organisms from the past, usually found in sedimentary rock, which appears in layers or strata.