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Unformatted text preview: photoheterotrophs, and chemoheterotrophs. • Distinguish among obligate aerobes, facultative anaerobes, and obligate anaerobes. • Explain the importance of nitrogen fixation to life on Earth. • Describe the specializations for nitrogen fixation in the cyanobacterium Anabaena . Concept 27.3: Molecular systematics is illuminating prokaryotic phylogeny • Describe the distinguishing characteristics of the following major groups of Bacteria: o Proteobacteria o Chlamydias o Spirochetes o Gram-positive bacteria o Cyanobacteria • Explain why some Archaea are known as extremophiles. Describe the distinguishing features of methanogens, extreme halophiles, and extreme thermophiles...
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This note was uploaded on 07/21/2008 for the course BIOL 1202 taught by Professor Gregg during the Summer '08 term at LSU.
- Summer '08