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题目选项分析

In Colorado subalpine meadows, nonnative dandelions co-occur with a native flower, the larkspur. Bumblebees visit both species, creating the potential for interactions between the two species with respect to pollination. In a recent study, researchers selected 16 plots containing both species; all dandelions were removed from eight plots; the remaining eight control plots were left undisturbed. The control plots yielded significantly more larkspur seeds than the dandelion-free plots, leading the researchers to conclude that the presence of dandelions facilitates pollination (and hence seed production) in the native species by attracting more pollinators to the mixed plots.

Which of the following, if true, most seriously undermines the researchers` reasoning?

【选项】Soil disturbances can result in fewer blooms, and hence lower seed production.

选项是否正确?

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题目基本信息

  • 所属科目:逻辑CR
  • 题目来源1:OG16-121
  • 题目来源2:OG17-663
  • 题目来源3:OG18-664
  • 题目来源4:OG19-664
  • 题目来源5:OG20-755
正确率:56%