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Steelhead Fish Are Predators of Predatory Insects, Which in Turn

Question 44

Multiple Choice

Steelhead fish are predators of predatory insects, which in turn feed on midge larvae. The midge larvae feed on algae. By indirect effects, a reduction in the number of steelhead fish should lead to a(n) _______ in midges and a(n) _______ in algae.


A) increase; increase
B) increase; decrease
C) decrease; increase
D) decrease; decrease

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