E3TopicalOverview - Biology 102, Spring 2008: 3rd...

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Biology 102, Spring 2008: 3 rd Opportunity Topical Overview An exam is an opportunity where your preparation meets my challenge Protists What distinguishes eukaryotes from prokaryotes? How did eukaryote characteristics evolve? What are protists? What are the major groups of protists? Slime molds Protozoans (“Animal-like” protists): mostly single celled heterotrophs “Plant-like” protists: mostly photosynthetic; single celled and multicellular species What is an organismal lifecycle? Animal Evolution and Diversity What is an animal? (What are the distinctive characteristics of animals?) What distinguishes the different groups of animals? Evolution of Animals Diversity of Body Plans vertebrates-- with “backbone” invertebrates-- without backbone; invertebrates rule big time: 2 million species of animals; only 50,000 are vertebrates Body Symmetry Radial vs. Bilateral Cephalization Gut saclike (incomplete digestive system) tubelike (complete digestive system) Body cavities: no coelom, false coelom, coelom
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This note was uploaded on 04/17/2008 for the course BIO 102 taught by Professor Brewton during the Spring '08 term at University of Tennessee.

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E3TopicalOverview - Biology 102, Spring 2008: 3rd...

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