In Seedcracker Finches from Cameroon, Small- and Large-Billed Birds Specialize

question 53

Multiple Choice

In seedcracker finches from Cameroon, small- and large-billed birds specialize in cracking soft and hard seeds, respectively. If long-term climatic change resulted in all seeds becoming hard, what type of selection would then operate on the finch population?

• A)disruptive selection
• B)directional selection
• C)stabilizing selection
• D)sexual selection
• E)No selection would operate because the population is in Hardy-Weinberg equilibrium.

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Definitions:

Output

The amount of goods or services produced by a company, industry, or economic system.

Production Function

A mathematical representation in economics that describes the relationship between the inputs used in production and the output of goods or services produced.

Returns To Scale

The change in output resulting from a proportionate increase in all inputs in the production process.

Input

Resources such as labor, materials, and capital used in the production process to create goods or services.