問題詳情

76-80)When you hear someone bubbling enthusiastically about an exotic species, you can safety bet the speakerisn’t an ecologist. This is a name for a resident of an established community that was deliberately or accidentallymoved from its home range and became established elsewhere. Unlike most imports, which can’t take holdoutside their home range, an exotic species permanently insinuates itself into a new community.Sometimes the additions are harmless and even have beneficial effects. More often, they make nativespecies endangered species, which by definition are extremely vulnerable to extinction. Of all species on the rareor endangered lists or that recently became extinct, close to 70 percent owe their precarious existence or demise todisplacement by exotic species.
76. Which of the following best explains the term “exotic species” in paragraph 1?
(A) An animal or plants on the rare species list.
(B) A permanent resident in an established community.
(C) A species that has been moves to a different community.
(D) An import that fails to thrive outside of its home range.

參考答案

答案：C
難度：適中0.632653
統計：A(7),B(5),C(31),D(6),E(0)

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