Owens and olson hypothesize that the presence of

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Owens and Olson hypothesize that the presence of carotenoids, as signaled by coloration, would be meaningful in the context of mate selection if carotenoids were either rare or required for health. The conventional (15) view is that carotenoids are meaningful because they are rare: healthier males can forage for more of the pigments than can their inferior counterparts. Although this may be true, there is growing evidence that carotenoids (20) are meaningful also because they are required: they are used by the immune system and for detoxification processes that are important for maintaining health. It may be that males can use scarce carotenoids either for immune (25) defense and detoxification or for attracting females. Males that are more susceptible to disease and parasites will have to use their
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carotenoids to boost their immune systems, whereas males that are genetically resistant (30) will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead. -------------------------------------------------------------------------------- Q13: Information in the passage suggests that which of the following is true of carotenoids that a male animal uses for detoxification processes? A. They were not acquired directly from plants and algae. B. They cannot be replenished through foraging. C. They cannot be used simultaneously to brighten coloration. D. They do not affect the animal’s susceptibility to parasites. E. They increase the chances that the animal will be selected as a mate. Answer: -------------------------------------------------------------------------------- Q14: The passage suggests that relatively bright carotenoid-based coloration is a signal of which of the following characteristics in males of certain animal species? -------------------------------------------------------------------------------- Q15: According to the “conventional view” referred to in lines 14-15 of the passage, brighter carotenoid-based coloration in certain species suggests that an individual ------------------------------------------------------------------------------------------------------------ Q16: Paper&Print is a chain of British stores selling magazines, books, and stationery products. In Britain, magazines’ retail prices are set by publishers, and the retailer’s share of a magazine’s retail price is 25 percent. Since Paper&Print’s margin on books and stationery products is much higher, the chain’s management plans to devote more of its stores’ shelf space to books and stationery products and reduce the number of magazine titles that its stores carry.
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Which of the following, if true, most strongly argues that the plan, if put into effect, will not increase Paper&Print’s profits?
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