| | 06 (Site not responding. Last check: 2007-10-14) |
 | | antibiotic bacteriorhodopsin binary fission bioremediation capsule chemoautotroph chemoheterotroph commensalism conjugation decomposers domain endospore endotoxin exotoxin extreme halophile extreme thermophiles extremeophile facultative anaerobe Gram stain gram–negative gram–positive host Koch's postulates methanogen mutualism nitrogen fixation nucleoid region obligate aerobe opportunistic parasite parasitism peptidoglycan photoautotroph photoheterotroph pili (pilus) saprobe signature sequences symbiont symbiosis taxis transduction |
 | | List the mechanisms that are sources of genetic variation in prokaryotes and indicate which one is the major source. |
 | | Distinguish between photoautotrophs, chemoautotrophs, photoheterotrophs, chemoheterotrophs, saprobes, and parasites. |
| www.sbs.utexas.edu /delia/bio213/06exam1.htm (724 words) |