BIO153H5 Study Guide - Midterm Guide: Georges Cuvier, Binomial Nomenclature, Species Problem

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5 Feb 2017
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Key concept 22. 1 the darwinian revolution challenged traditional views of a young. Scala nuturae and classification of species: greek philosophers suggested life gradually changed over time, aristotle though species didn"t evolve. Concluded lifeforms can be arranged on a ladder (from most to least complex) In 1700s, scientist noticed organisms are relative to environment. Developed binomial nomenclature: adopted nested classification system that groups similar organisms. Did not ascribe resemblance amongst organisms: darwin believed classification should be based on evolutionary relationships. Ideas about change over time: darwin studied fossils, fossils around found in sedimentary rocks formed from sand and mud. New layers that cover older ones are called strata: paleontology is the study of fossils. Developed paleontology: noticed that the older the stratum, the more dissimilar its fossils were to current life-forms. Opposed idea of evolution: catastrophism georges cuvier. Ideas that events in the past occurred suddenly and were caused by mechanisms different from those operating in the present.