lab exam review 9

lab exam review 9 - BIOL 112 Laboratory Review SINGLE...

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Unformatted text preview: BIOL 112 Laboratory Review SINGLE CELLED ORGANISMS: • Three domains of life: Bacteria, Archaea, and Eukarya. • Members of Bacteria and Archaea are Prokaryotes. • Aerobic bacteria require oxygen for growth whereas Anaerobic bacteria cannot tolerate atmospheric oxygen and are found in oxygen poor environments. • Facultative anaerobes prefer atmospheric oxygen, but can survive without it. • Autotrophs produce their own food. • Heterotrophs break down complex organic compounds gleaned form the environment. • Cyanobacteria live in extreme environments, including hot springs and bare rock. When you examine specimens, look for akinetes which are large, oval, dense, spore-like cells that can survive through adverse conditions. • Giardia is an intestinal parasite commonly found in surface waters. It has a concave sucking disc that attaches to a the small intestine making it the cause of most cases of...
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lab exam review 9 - BIOL 112 Laboratory Review SINGLE...

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