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Kate: The recent decline in numbers of the Tennessee warbler, a North American songbird that migrates each fall to coffee plantations in South America, is due to the elimination of the dense tree cover that formerly was a feature of most South American coffee plantations.

Scott: The population of the spruce budworm, the warbler's favorite prey in North America, has been dropping. This is a more likely explanation of the warbler's decline.

Which of the following, if true, most seriously calls Scott's hypothesis into question?

【选项】Many Tennessee warbler have begun migrating in the fall to places other than traditional coffee plantations.

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题目基本信息

  • 所属科目:逻辑CR
  • 题目来源1:GWD-195
  • 题目来源2:PREP08 Test 1-92
正确率:50%