A Scientist Is Studying Beak Length in a Species of Hummingbird

question 78

Multiple Choice

A scientist is studying beak length in a species of hummingbird. The scientist establishes a population of birds with beaks ranging from very small to very long and allows the population to breed for 10 years. At the end of the experiment, she finds that the majority of birds in the population have very long beaks. This is an example of _____ selection.

• A)disruptive
• B)stabilizing
• C)directional
• D)sexual

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Definitions:

Percentage

A portion of a whole expressed as a number between 0 and 100 rather than as a fraction.

Hectares

A metric unit of square measurement equal to 10,000 square meters, commonly used in agriculture and land measurement.

Land

The part of the earth's surface that is not covered by water, often considered in terms of its ownership or use.

Purchase

The act of buying goods or services, often involving a legal transaction between a buyer and a seller.