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questions_week-4_13

According to the intra sexual selection model for the

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42) According to the intra-sexual selection model for the evolution male display traits, in EXPERIMENT-1: a) territorial birds with brightened heads will be better than CONTROLS at attracting mates b) territorial birds with dulled heads will be better than CONTROLS at attracting mates c) the birds with brightened heads will be better than CONTROLS at intimidating rival males d) the birds with dulled heads will be better than CONTROLS at intimidating rival males e) answers a & d are both correct 43) According to the material benefits model for the evolution male display traits, in EXPERIMENT-1:
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44) If you assume that the population has evolved to equilibrium conditions, then according to the sensory exploitation model for the evolution of male display traits, in EXPERIMENT-1: 45) In EXPERIMENT-2, assuming that yellow heads evolved in response to inter-sexual selection: _____________________________________________________________________________ Use the information below for the next two questions (until you see a bar beneath the question) Two islands are used to grow a popular tropical berry. The berry has an annual life cycle. On one island (Island-A) each new generation of berry plants is produced by using seeds from the plants that lived on that island the year before. On the other island (Island-B), each new generation of berry plants is produced from seeds obtained from an agricultural nursery that supplies seeds to many locations. The berries have been grown for many generations on each island. You can assume that the islands are identical in every way except for the consequences of how the berries were propagated.
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