The Midrange of an Array of Phenotypes Is Favored

question 33

Multiple Choice

The midrange of an array of phenotypes is favored.

• A)directional selection
• B)stabilizing selection
• C)disruptive selection
• D)guppies with pike cichlids and killifish
• E)guppies with killifish

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Definitions:

Unconditioned Response

An automatic, innate reaction to a stimulus that occurs without prior conditioning or learning.

Negatively Reinforced

A behavior strengthened because a negative condition is removed or avoided as a consequence of the behavior.

Positively Punished

The addition of an unpleasant stimulus in response to a behavior, resulting in a decrease in the likelihood of that behavior being repeated.

Negatively Punished

A term in behavioral psychology referring to the decrease in the frequency of a behavior due to the removal of a pleasant stimulus following the behavior.