Which Factor Affecting the Rate of Evolution in a Population

question 14

Multiple Choice

Which factor affecting the rate of evolution in a population is considered the ultimate source of variation?

• A) Genetic variation
• B) Mutations
• C) The size of a population
• D) How isolated a population is
• E) Phenotype expression

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Definitions:

Habituation

The process by which there is a decrease in response to a stimulus after being repeatedly exposed to it, highlighting an organism's ability to adapt to its environment.

Emotional Arousal

The state of being emotionally stimulated or excited, which can affect both physiological and psychological functioning.

Observable Behavior

Any action or reaction of a person or animal that can be directly seen or measured.

Cognitive Processes

Mental activities that include thinking, understanding, learning, and remembering.