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题目选项分析

Which of the following most logically completes the reasoning?

When species are extensively hunted, individuals that reach reproductive maturity early make up a larger proportion of the population, because they have a better chance of reproducing. When species face diminished food resources, on the other hand, individuals tend to take longer to reach reproductive maturity. These considerations may help settle whether the primary cause of the gradual disappearance of North America's mastodons, prehistoric animals related to elephants, was diminished food resources or human hunting, since __________.

【选项】from the remains of mastodons already discovered, it can be accurately estimated when mastodons became extinct

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题目基本信息

  • 所属科目:逻辑CR
  • 题目来源1:OG12-41
  • 题目来源2:PREP08 Test 2-69
难度: 难