58) 58) Which of the following describe all existing bacteria? A) extremophiles, tiny, abundant B) small, harmful, fast-growing C) morphologically diverse, metabolically diverse, extremophiles D) tiny, ubiquitous, metabolically diverse E) pathogenic, omnipresent, morphologically diverse 59) assuming that nothing is done to counter the reduction of intestinal bacteria, a hospital patient who is receiving broad-spectrum antibiotics is most likely to become 59) Broad-spectrum antibiotics inhibit the growth of most intestinal bacteria. Consequently A) deficient in certain vitamins and nutrients B) antibiotic-resistant C) unable to fix nitrogen D) unable to synthesize peptidoglycan E) unable to fix carbon dioxide Multicellularity and large body size of eukaryotic organisms require high metabolic rates and eficient ATP production by aerobic respiration. How did bacteria change Earth's atmosphere to enable aerobic respiration? 60) 60) A) Splitting of water during anaerobic respiration by cyanobacteria dramatically increased B) Oxygenic photosynthesis by cyanobacteria significantly increased the amount of oxygen C) Nitrogen fixation by cyanobacteria decreased the amount of nitrogen in the atmosphere D) Anaerobic respiration by cyanobacteria increased the amount of oxygen in the atmosphere the amount of oxygen in the atmosphere. in the atmosphere. leading to the simultaneous increase of oxygen. by reducing the amount of iron oxides that were able to react instantly with oxygen. 61) Protists and bacteria are grouped into different domains because 61) A) bacteria are not made of cells B) bacteria decompose protists C) protists have a membrane-bounded nucleus, which bacterial cells lack D) protists are photosynthetic E) protists eat bacteria 62) When a mosquito infected with Plasmodiuon first bites a human, the Plasmodium 62) A) cells infect the human liver cells B) oocyst undergoes meiosis C) cells cause lysing of the human red blood cells D) gametes fuse, forming an oocyst 63) Protists from which of the following taxonomic groups are most likely to lead to paralytic 63) shellfish poisoning A) Giardia B) Plasmodiui C) Toxoplasma D) Euglena E) Dinoflagellata
