Question

Natural selection changes in

Answer 1

response to environmental pressures and the fitness of individuals within a population. This means that as the environment changes, certain traits that were once advantageous may no longer provide as much of a competitive advantage. This can lead to the evolution of new traits and adaptations that are better suited to the new environment. Natural selection also acts on the genetic variability within a population, favoring those individuals with traits that increase their chances of surviving and reproducing. Over time, these changes can result in gradual shifts in the genetic makeup of a population, leading to the emergence of new species.