In three to five sentences, construct an argument for the claim that natural selection leads to evolution. Provide evidence for this claim, and be sure to explain how an organism shows the four parts of the process of natural selection. You may use any organism with the exception of bacteria and antibiotic resistance.(

1 answer

Natural selection is a key mechanism driving evolutionary change, as it acts on the variation present in a population of organisms. This process is evident in the case of the peppered moth, a species in which natural selection played a role in the evolution of its coloration. The four components of natural selection are variation in a population (e.g. different moth colorations), heritability of traits (coloration passed on from parent to offspring), differential survival or reproduction based on traits (moths with better camouflage surviving predation), and gradual changes in a population over time (shift in moth coloration over generations). Therefore, natural selection results in the evolution of characteristics that help organisms better adapt to their environment.