What Might Occur in Moth Populations If Pollution from Industry

question 24

Multiple Choice

What might occur in moth populations if pollution from industry was cleaned up,and the color of tree bark returned to its natural color?

• A) Dark moths would continue to be the predominant phenotype.
• B) Birds would now see the dark moths easier than the lighter color moths.
• C) Dark- and light-colored moths would survive in equal numbers.
• D) Both dark and light color moths would be preyed upon equally by birds.

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Definitions:

Observable

Capable of being seen, noticed, or measured directly or indirectly in a scientific or empirical manner.

Classical Conditioning

A learning process that occurs when two stimuli are repeatedly paired; a response that is at first elicited by the second stimulus is eventually elicited by the first stimulus alone.

Stimulus-Response Association

The link established between a specific stimulus and a particular response through conditioning.

Extinction

In behavioral psychology, the gradual weakening and eventual disappearance of a learned response, typically as a result of the withdrawal of reinforcement.