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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Definitions:

Price Discrimination

A strategy where a firm sells the same product at different prices to different groups of consumers, often based on their willingness to pay.

Third-degree Price Discrimination

A pricing strategy where a seller charges different prices to different groups of consumers for the same product, based on attributes like age, location, or income.

Profit Maximizing Prices

Prices set by firms to maximize their profits, determined by the intersection of marginal cost and marginal revenue.

Marginal Revenue Function

A mathematical representation that shows how marginal revenue changes as the quantity of output is changed.