Which of these biomes is one of the most biologically productive of all biomes?
A) open oceans
B) estuaries
C) temperate grasslands
D) coniferous forests
B
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The cochlea is represented by which number?
A) 3 B) 4 C) 5 D) 6 E) 7
Which pathway shows the correct path of electron transfer from a molecule of NADH?
A. NADH hydrogenase ? ubiquinone ? cytochrome oxidase ? cytochrome b-c1 ? cytochrome c ? O2 B. NADH hydrogenase ? ubiquinone ? cytochrome c ? cytochrome b-c1? cytochrome oxidase ? O2 C. ubiquinone ? cytochrome b-c1? cytochrome c ? cytochrome oxidase ? NADH hydrogenase ? O2 D. NADH hydrogenase ? ubiquinone ? cytochrome b-c1? cytochrome c ? cytochrome oxidase ? O2 E. ubiquinone ? cytochrome b-c1? cytochrome c ? NADH hydrogenase ? cytochrome oxidase ? O2
You awaken to find yourself lying on the bare ground, dirty and injured. In the dim light, you can make out wreckage around you and surmise that you have survived a plane crash. Over the next few days, you wander the hot, humid area and find an amazing number of different plant and insect species. You are able to trap and eat several rodent size mammals, but do not see any larger mammals. Into what biome did your plane crash?
A. Tropical grassland B. Taiga C. Temperate rain forest D. High desert E. Tropical rain forest
It is inappropriate to prescribe antibacterial agents to treat colds or flu because
A. the microbes involved can develop resistance rapidly. B. these diseases are transmitted by endospores, which are difficult to kill. C. these diseases exhibit cross resistance. D. these diseases are caused by viruses. E. these diseases can act synergistically with each other.