92409 - ISS 1 Organizing the natural world a Linnaeus i...

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ISS 9/24/09 1) Organizing the natural world. a) Linnaeus i) Recognized that there was enormous variety of living things ii) Came up with a classification system (1) Based on how something looks. (appearance) b) Taxonomy i) Type of classification ii) Has an order of an importance (1) Hierarchical (a) Branches effect each other (b) Any category of taxonomy is a taxon. (c) Four levels (i) Class (ii) Order (iii)Genus (iv) Species (2) Now has more categories (a) Now there are 7 (i) Kingdom 1. Phylum a. Class i. Order family Genus
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Species (a) Cladistics (i) Bridge between taxonomy and its evolutionary implications 1. Shared derived characteristics a. Shared phenotypic characteristics derived from a common ancestor and which other groups do not possess 2. Genetic comparisons a. Becoming increasingly refined. 3. Organization: a. Not same as Linnaean taxa 2) Why should we study primates? a) Form on analog of earlier stages of human evolution b) Provides with a range of behavior patterns i) Social
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  • Spring '08
  • Bailey
  • earlier stages, long gestation period, prehensile¬†tail, small body size, Shared phenotypic characteristics

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92409 - ISS 1 Organizing the natural world a Linnaeus i...

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