Question Detail
Question
The force that initiates evolution is: a. Extinction b. Variation c. Mutation d. Adaptation
Correct Answer
Option B is the correct answer.
Detailed Explanation
Evolution requires heritable changes in a population over time. Variation, or differences among individuals in a population, is the raw material upon which evolutionary forces like natural selection act. Without variation, there can be no evolution.
Hint
Without differences between individuals, there's nothing for natural selection to act upon.