Which of the above four graphs illustrates how the

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10) Which of the above four graphs illustrates how the yucca plant prevents the yucca moth from cheating and evolving into a parasite? (A) , (B) , (C) , (D) , (E = None of these) 11) The experiments done with fruit flies by Bateman concerning sexual selection indicate that: 12) deleted 13) deleted 14) deleted 15) deleted. Proportion of flowers retained (not terminated) 0.6 0.0 0 1 6 9 13 30 0.6 0.0 0 1 6 9 13 30 Proportion of flowers retained (not terminated) 0.6 0.0 0 1 6 9 13 30 Numb. moth eggs / flower 0.6 0.0 0 1 6 9 13 30 Numb. moth eggs / flower A B C B C D
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V irulence (% rats killed per infection) Time since starting yearly introduction of sterile parasites 0 25 A B C D E 16) The presence of rats on islands (inadvertently introduced by human mariners) has been a major ecological problem for hundreds of years. Suppose that the Fish & Wildlife Department decided to try to control rats on an island by repeatedly introducing a sterile parasite each year until the rats were eradicated. They expect the program to take 25 years (which is about 50 rat-generations). A sterilized parasite is used because it occasionally infects native mammals on the island; so by using sterilized parasites, they will not be permanently introduced to the island (i.e., parasites extinct after 1 generation if they are not re-introduced each year). The parasite infects the rats and kills a high percentage of them but the parasite itself cannot reproduce. Alternative plots of parasite virulence (how often the parasite kills an infected rat ion the island) vs. time are presented above. Based on your understanding of coevolution, which of the plots will best describe the virulence of the parasite over time? Evolutionary Change Time A. B. C. 17) In the graph above, which line or curve best describes adaptation to a new, physical environment? 18) If a new mutation evolved in the Yucca Moth that produced moth eggs & larvae that were undetectable by the Yucca Plant, then the coevolution between the Yucca Moth and Yucca Plant would evolve toward: a) mutualism b) neutral coevolution c) parasitism d) stalemate e) both answers b & d are correct.
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