Question

which of the following statements best describes why genetic variation is important for evolution? choose 1 answer: a genetic variation allows some individuals in a population to be more fit than others in their specific environment. b genetic variation allows some individuals to evolve more quickly than others in a population. c genetic variation ensures that all individuals in a population have roughly equal chances of survival.

Explanation:

• Option A: Genetic variation leads to different traits. In a specific environment, some traits (from variation) make individuals more fit (better survival/reproduction), which drives natural selection and evolution.
• Option B: Evolution is a population - level change over time, not individuals evolving at different speeds. So this is incorrect.
• Option C: Genetic variation means individuals have different traits, so their survival chances aren't equal (some traits are more favorable in an environment). Thus, this is wrong.

Answer:

A. Genetic variation allows some individuals in a population to be more fit than others in their specific environment.