Dis 4 review - Discussion 4 Critique I Miles Meyer EB 187-2...

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Miles Meyer 2/10/08 EB 187-2 Gowaty, TA Julie S. Discussion 4 Critique I. What question or hypothesis did the authors address? The hypothesis addressed was that female bruchid beetles weigh the costs  of mating due to their nutritional and hydration needs, and will copulate  more readily if they are in need of nutrition/hydration, which they receive   from the male ejaculate . II. Why is it interesting? A. Why do the authors say it is interesting? Authors say it is interesting since mating has costs to both males and  females:  males’ ejaculate account for a large part of their body mass  (up to 10%) and need to use it effectively to make sure its mating  effort doesn’t get wasted if their mate decides to remate, and females’  body and reproductive organs get damaged during copulation since  the male’s sex organ is lined with spikes.  They find it interesting to  know how the females decide whether the benefit of mating is greater  than the cost of the physical damage to their body. B. Do you agree?  Is it interesting from other angles as well? I agree that it is interesting to see how these beetles developed  methods of altering their mating behavior due to environmental  circumstances.  It is also interesting that males have developed a  method of enticing females with their nuptial gifts into mating with  them and their spiky genitalia.
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