When One Species Evolves a New Phenotypic Feature and Another

question 19

Multiple Choice

When one species evolves a new phenotypic feature and another species evolves new adaptations in response, it is called

• A) gene flow.
• B) genetic drift.
• C) sexual selection.
• D) stabilizing selection.
• E) coevolution.

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Definitions:

Law of Effect

A psychological principle suggesting that behaviors followed by positive outcomes are likely to be repeated, whereas behaviors followed by negative outcomes are less likely to be repeated.

Operant Conditioning

A method of learning that employs rewards and punishments for behavior, encouraging the reinforcement of desired behaviors and the discontinuation of undesired ones.

B.F. Skinner

An American psychologist known for his work in behaviorism and the development of the theory of operant conditioning.

Law of Effect

A principle in psychology that states behaviors followed by positive outcomes are likely to be repeated, while those followed by negative outcomes are not.