How do selective agents lead to micro evolution within a population?

Selective agents, such as predators, environmental changes, or competition for resources, influence which individuals in a population survive and reproduce. This process, known as natural selection, favors traits that enhance survival and reproductive success. Over time, these advantageous traits become more common in the population, leading to microevolution, which refers to small-scale changes in allele frequencies within a population. Ultimately, this process results in adaptations that can better suit the population to its environment.