Four Agents Of Natural Selection

There are four main agents of evolution; mutation, gene flow, genetic drift, and natural selection. Of those four agents, natural selection is responsible for the majority of adaptations and genetic variability that leads to greater survival and reproduction. Natural selection is the differentiation in reproduction based on genetic constitution. In a given plant population, natural selection begins with a single mutation. Mutations themselves are completely random and can potentially increase, decrease, or have no effect on fitness (Paleontology, 2008). In order for a given mutation to be selected for, it must be inheritable, it must lead to better survival and it must lead to greater reproductive success.
Selection for a given mutation or