Question

which of the following best describes evolution? choose 1 answer: a a change in the genetic composition of a population over many generations b a process that causes beneficial traits to become more common in a population over time c a mechanism by which natural selection can occur

Explanation:

To determine the best description of evolution, we analyze each option:

• Option A: Evolution is defined as a change in the genetic composition of a population over successive generations. This is the core definition of evolution.
• Option B: This describes natural selection (a mechanism of evolution) rather than evolution itself. Natural selection is one process that drives evolution by increasing the frequency of beneficial traits, but it is not the definition of evolution.
• Option C: Evolution is not a mechanism for natural selection; rather, natural selection is a mechanism that contributes to evolution.

Answer:

A. a change in the genetic composition of a population over many generations