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What System Provides Evidence to Support the Idea of Bottom-Up

Question 4

Multiple Choice

What system provides evidence to support the idea of bottom-up control?


A) The control of cottony cushion scale by Vedalia beetles
B) The increase of tree growth following habitat colonization by wolves
C) Fertilizer increasing water hyacinth nutrient levels and beetle abundance
D) Overfishing in the cod industry
E) The increase in skates and rays following shark removal

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