Question

summarizing natural selection
explain how natural selection can lead to evolution.

Explanation:

Natural selection acts on heritable trait variation in a population. Individuals with traits better suited to their environment (adaptations) survive and reproduce at higher rates, passing these favorable traits to offspring. Over successive generations, the frequency of these advantageous traits increases in the population, while less favorable traits become less common or disappear. This gradual change in the genetic and phenotypic makeup of the population over time is evolution.

Answer:

Natural selection drives evolution by favoring individuals with heritable, environment-adaptive traits. These individuals have higher survival and reproductive success, passing their favorable traits to offspring. Over generations, the frequency of these advantageous traits increases in the population, causing gradual genetic and phenotypic shifts that define evolutionary change.