Bio171-F10-Lec 27 - Biology 171 Monday, November 15, 2010...

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Unformatted text preview: Biology 171 Monday, November 15, 2010 Lecture 27: The Prokaryotic World Text Reading Lecture 27 : 4 th : Chapter 27 (496-516) 3 rd : Chapter 27 (566-590) Lecture 28 : 4 th : Chapter 35 (675-692) 3 rd : Chapter 35 (769-789) Extinction (concluded) Prokaryotes/Bacteria/Archaea/Eukarya Reproduction & Pathogenesis Conjugation & Antibiotic Resistance Electron Donor/Acceptor Diversity Extremophiles Life in Sediments - Redox Potential Hot Vent Symbiosis 1 This week in Discussion: Reconstructing Phylogeny Exam 3 Wed. Nov. 17 8-10PM Exam covers lectures 20-27 Discussions 6-8: (Genetics Problems, Evolution/Pop. Genetics, Sexual selection/speciation) Biology 171 Monday, November 15, 2010 Lecture 27: The Prokaryotic World Announcements 1 Special Office Hours Wednesday, Nov. 17 9-11 AM This week in Discussion: Reconstructing Phylogeny Exam 3 Wed. Nov. 17 8-10PM Exam covers lectures 20-27 Discussions 6-8: (Genetics Problems, Evolution/Pop. Genetics, Sexual selection/speciation) Biology 171 Monday, November 15, 2010 Lecture 27: The Prokaryotic World Announcements 1 Special Office Hours Wednesday, Nov. 17 9-11 AM 1-3 PM 30 Marine Animal Diversity Profle Over Time 31 Diversity Profles oF Major Animal Clades Through Time 32 The end-Ordovician mass extinction (450mya) was the second worst in earths history. Global cooling may have been responsible as evidenced by glacial deposits in then tropical Australia. 33 The end-Permian mass extinction (250mya) was the worst in earths history, with over 90% of species dying. 34 The end-Permian mass extinction (250mya) was the worst in earths history, with over 90% of species dying. The Siberian traps are end-Permian Food basalt deposits covering up to 7m km 2 . Volcanism caused warming, increased CO 2 , and toxic gas increases. 35 The end-Cretaceous mass extinction (65mya) is the best studied. Around 75% of species went extinct. 36 The end-Cretaceous mass extinction (65mya) is the best Studied. Around 75% of species went extinct....
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Bio171-F10-Lec 27 - Biology 171 Monday, November 15, 2010...

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