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Zebra Mussels

GRE-ZOEG3Y

Select the TWO answer choices that, when used to complete the sentence, fit the meaning of the sentence as a whole and produce completed sentences that are alike in meaning.

Because of the damage zebra mussels have inflicted on the ecosystem of the Great Lakes, the Environmental Protection Agency and the Department of Natural Resources have classified these _______________ mollusks as invasive.

A

aquatic

B

beneficial

C

deleterious

D

flagrant

E

pernicious

F

valuable