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  3. If senescence is to be compatible with natural selection, there must be some concomitant benefit associated with it that outweig

If senescence is to be compatible with natural selection, there must be some concomitant benefit associated with it that outweig

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问题 If senescence is to be compatible with natural selection, there must be some concomitant benefit associated with it that outweighs its disadvantage. Since Darwinian fitness is measured by total reproduction, the advantage must be that senescence is inextricably tied up with reproductive effort.
选项 A、offspring
B、depression
C、decrepitude
D、sterility
答案C
解析 四个选项的意思分别是：offspring后代，子孙； depression萧条；decrepitude衰老，老朽； sterility不毛，不育。句意是，如果衰老与自然选择相一致，那么一定会随之产生相关的好处，并远远超过其缺陷。既然达尔文适合度由总的繁殖方式衡量，那么优势就是衰老与繁殖密切相关。所以正确答案是C选项，如：It can decelerate decrepitude，brightenskin，fade mark and make skin white，tender and healthy．(它可消除衰老皮肤，令其健康细腻，有淡化印迹，令皮肤变白、变嫩之功效。)
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