【罗技】诗意越原始狗狗整理（共157只，12/08-01:20）

melodicmind

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joyce92pipi

European green crabs are an invasive species which have recently colonized the Northwest coast of North America, among other places. They disrupt ecosystems and prey heavily on native shellfish. However, in Europe, the population of green crabs is kept relatively low by a parasitic barnacle called Sacculina carcini. This barnacle is hardy and could likely be introduced to areas where the European green crab threatens to ruin established ecosystems.

Which of the following, if true, most strongly supports the argument that it would NOT be advisable to attempt to eliminate European green crabs from the Northwest coast of North America by introducing to the area the parasitic barnacle discussed above?
AIn their native habitat, the parasites often threaten the elimination of local green crab populations.
BEuropean green crabs are also occasionally preyed upon by fishes, gulls and other species of crab in their native ecosystems.
CThough the parasite may survive in North American waters, no large-scale facility for breeding and harvesting the parasites exists as of yet.
DMany other invasive species on the Northwest coast of North America are not suitable hosts for this parasite.
EThough the barnacle cannot reproduce inside of native shore crabs, it can still infect and kill native shore crabs.

zhangjiaen208

nicenicenice

bellamy193

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wangzixun

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