Natural selection is the tool for evolution, and the tool for natural selection is :crossing over, independent assortment and most importantly MUTATION, thus species having selective advantage multiply and eventually a new specie which can not inter breed with other species is evolved. evolution is the process where species emerge from existing onesexplain the role of natural selection in EVOLUTION?
ms mentions that individuals can potentially overproduce but do not do so cos most die b4 reaching maturity due to disease hunting etc......so as a result population size remains roughly constant.....now WTH has this to do with evolution