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Most mammals reach sexual maturity when their growth rates are in decline, w
Most mammals reach sexual maturity when their growth rates are in decline, w
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2025-02-19
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问题
Most mammals reach sexual maturity when their growth rates are in decline, whereas humans experience a growth spurt during adolescence. Whether apes experience an adolescent growth spurt is still undecided. In the 1950s, data on captive chimpanzees collected by James Gavan appeared devoid of evidence of an adolescent growth spurt in these apes. In a recent reanalysis of Gavan’s data, however, zoologist Elizabeth Watts has found that as chimpanzees reach sexual maturity, the growth rate of their limbs accelerates. Most biologists, however, are skeptical that this is a humanlike adolescent growth spurt. While the human adolescent growth spurt is physically obvious and affects virtually the entire body, the chimpanzee’s increased growth rate is detectable only through sophisticated mathematical analysis. Moreover, according to scientist Holly Smith, the growth rate increase in chimpanzees begins when 86% of full skeletal growth has been attained, whereas human adolescence generally commences when 77 percent of full skeletal growth has occurred. [br] Which of the following best describes the main idea of the passage?
选项
A、Researchers have long disagreed about whether data collected in the 1950s indicate that chimpanzees and other apes experience an adolescent growth spurt.
B、Research data collected on chimpanzees living in captivity are inconclusive with respect to chimpanzees living in the wild.
C、The notion that apes do not experience an adolescent growth spurt has been confirmed by research conducted since.
D、Although the idea that apes experience an adolescent growth has received some support, most biologists remain unconvinced.
E、Although researchers agree that chimpanzees do not experience an adolescent growth spurt, they are divided in their opinions of whether this is true of other apes.
答案
D
解析
根据第四句,伊丽莎白.沃茨对黑猩猩的生长加速持支持态度,之后的内容则对关于黑猩猩的生长是否可以类比人类进行了质疑。A项本文的内容不仅仅局限于1950年代的数据,考查细节。B项文章没有将圈养的和野外的黑猩猩进行对比。C项文章主旨在于对黑猩猩的青春期生长加速持怀疑态度,不可能被证实。E项本文没有把不同的猿类进行区分,排除选项E。
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