Which of the Following Is the Most Accurate Definition of Microevolution

question 52

Multiple Choice

Which of the following is the most accurate definition of microevolution?

• A) a heritable change in the genetics of a population over time
• B) natural selection leading to adaptation over time
• C) the occurrence of a series of mutations over time
• D) the origin of major new forms of life over time

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Definitions:

Conditioned Reflex

A learned response to a previously neutral stimulus, achieved through repeated pairings with an unconditioned stimulus.

Conditioned Response

A learned response to a previously neutral stimulus that has been consistently associated with an unconditioned stimulus.

Primary Reinforcer

A reinforcer that fulfills a basic physical need for survival and does not depend on learning.

Unconditioned Stimulus

A stimulus that naturally triggers a response without any need for learning.