If the 50 passage virus were treated with formalin as

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3. If the 50-passage virus were treated with formalin (as is the injected polio vaccine virus used in developed countries) A. vaccine recipients would be less likely to develop AIDS from the vaccine B. vaccine recipients would be more likely to develop AIDS from the vaccine C. vaccine recipients might vaccinate their unvaccinated neighbors D. answers A and C are both correct E. none of these answers is correct 4. Suppose that the vaccine was initially successful, but eventually the HIV virus in nature evolved resistance so that vaccinated people were no longer immune to the virus but in immunized people the virus’ generation time was increased 3-fold. After a vaccinated person became infected, about how long would it take for disease symptoms to occur? 5. If everyone in the world switched to a vegetarian diet for many years (leading to many associated changes in agriculture), then the the frequency of influenza pandemics would be: EEMB2 Final Salmon Version: 0 Page: 2
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Use the following information for the next 5 questions (until you see a solid line): A bird species (the green-winged babbler) has two traits that you suspect may influence sexual selection: a black head plume (A long, soft feather) and green wings. Females’ body coloration is a cryptic brown and they do not have head plumes. Females have a vocalization they use to signal males that they are ready to mate with them. In controlled experiments, males with bigger head plumes received more mating vocalizations from females, and males with brighter green wing coloration received fewer female mating vocalizations but were better able to defend their mating territories from intruders. Males from all other species in the clade to which the green-winged babbler belongs have drab coloration like females, but experiments demonstrate that females from these other species (including those closer to the root compared to the green- winged babbler) all have a strong mating preference for green-winged males. 6. The trait(s) influencing intersexual sexual selection in the green-winged babbler is (are):
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