How does natural selection results in changingpopulations within an aea?

Natural selection leads to changes in populations by favoring individuals with advantageous traits that enhance their survival and reproductive success in a specific environment. Over time, these traits become more common within the population, while less advantageous traits diminish. This process can result in adaptations to the environment, leading to shifts in population characteristics. As environmental conditions change, natural selection continues to shape the population, driving evolutionary change.