【OG24-518题】Information in the passage suggests that which of the following is true of carotenoids that a male animal uses for detoxification processes? _mofa留学圈mofaGRE在线题库系统_GRE在线搜题_GRE题库解析_GRE真题机经_GRE课程_GRE培训机构

最新题目

题目内容

纠错

Carotenoids, a family of natural pigments, form an important part of the colorful signals used by many animals. Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues. Studies of several animal species have shown that when choosing mates, females prefer males with brighter carotenoid- based coloration. 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 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 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 defense and detoxification or for attracting females. Males that are more susceptible to disease and parasites will have to use their carotenoids to boost their immune systems, whereas males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead.

Information in the passage suggests that which of the following is true of carotenoids that a male animal uses for detoxification processes?

They were not acquired directly from plants and algae. They cannot be replenished through foraging. They cannot be used simultaneously to brighten coloration. They do not affect the animal’s susceptibility to parasites. They increase the chances that the animal will be selected as a mate.

正确答案： C

参考解析

提交我的解析

文章大意逻辑
文章开篇介绍类胡萝卜素是动物重要的彩色信号组成部分，动物获取和储存类胡萝卜素的方式。接着提到研究显示雌性在选择配偶时偏好有更明亮类胡萝卜素颜色的雄性。随后 对比传统观点和新证据：传统观点认为类胡萝卜素重要是因其稀有，健康雄性可获取更多；新证据表明其重要还因为是维持健康的解毒过程所需。雄性可能将稀有类胡萝卜素用于免疫防御解毒或吸引雌性，易患病和寄生虫的雄性用其增强免疫系统，基因抗性强的雄性则用其展示。 文章类型及逻辑简图
文章类型：新旧观点对比 逻辑简图： Carotenoids are important for animals, acquisition ways introduced. Females prefer males with brighter carotenoid based coloration. Conventional view: carotenoids are meaningful because rare. New evidence: carotenoids are meaningful also for detoxification. Males' different uses of carotenoids according to health status. 做题方法及问题类型
这是一道细节推断题，通过定位文中关于雄性动物将类胡萝卜素用于解毒过程的相关表述来推断正确选项。定位提示句子如“It may be that males can use scarce carotenoids either for immune defense and detoxification or for attracting females.” 选项分析
A选项：文中提到动物获取类胡萝卜素可直接从植物藻类或间接从昆虫，不能得出用于解毒的就不直接从植物藻类获取，该选项错误。 B选项：文中未提及用于解毒的类胡萝卜素不能通过觅食补充，无中生有，该选项错误。 C选项：因为类胡萝卜素稀缺，雄性可能将其用于免疫防御解毒或吸引雌性，所以用于解毒时就不能同时用于使颜色更亮来吸引雌性，该选项正确。 D选项：文中明确说类胡萝卜素用于免疫防御，会影响动物对寄生虫的易感性，该选项错误。 E选项：文中说用于解毒就可能无法用于吸引雌性展示，不会增加被选为配偶的机会，该选项错误。

题目讨论 (如果对题目有任何的疑惑，欢迎在这里提出来，大家会帮你解答的哦~)

还没有人评论,赶快抢个沙发~

做题笔记

参考解析

题目讨论 (如果对题目有任何的疑惑，欢迎在这里提出来，大家会帮你解答的哦~)

请选择错误类型：

请描述一下这个错误：