The level of damage to berries from herbivores is

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46) The level of damage to berries from herbivores is expected to be a) Higher on Island-A b) Higher on Island-B c) The same on both islands d) No prediction is possible e) None of these answers are correct 47) On Island-A: _____________________________________________________________________________
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48) In the yucca / yucca-moth example described in class, a new mutation would be favored if: 49) Consider the lysin / egg-matrix example of coevolution described in class. Which statement would not support the intra-specific red queen hypothesis 50) Consider coevolution between the two pairs of genes described in class: Insulin and the insulin-receptor and lysin and the egg-matrix. Over time: a) The rate of coevolution between the lysin and egg-matrix genes will be greater than the rate of coevolution between the insulin and insulin-receptor genes. b) The rate of coevolution between the lysin and egg-matrix genes will be lower than the rate of coevolution between the insulin and insulin-receptor genes. c) The rate of coevolution between the lysin and egg-matrix genes will be equal to the rate of coevolution between the insulin and insulin-receptor genes. d) The rate of coevolution should speed up for both pairs of genes e) none of these answers are correct
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Use the information below for the next five questions (until you see a bar beneath the question) Suppose that a new mutation occurs in a population of flightless birds on an oceanic island. The mutation produces bright red coloration of the beaks of males (instead of the normal black beak coloration). The island population is divided into two subpopulations (east and west) by a steep ocean- filled canyon that the birds cannot cross. The west side of the island has a population of snakes that hunt the birds, but the east side of the island has no major predators. Males expressing the mutation have a 20% increase in mating success due to female preference. When snakes are present the survival of birds with bright red beaks is reduced by 30% compared to that of that of black-beaked males. The mutation does not harm or help males in any other way.
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