The agent doing the selecting in natural selection is the way organisms interact with one another and with their environment. How did he come to this idea. 17 Differences Between Natural And Artificial Selection The Selection Natural Selection Nature Natural Selection- mechanism by which individuals that have inherited beneficial adaptations produce more offspring on average than do other individuals. . 19 What are the five types of selective pressures. In natural selection the selective agent is the a. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth. Define Selective Pressure and Selective Agent. This is an example of the elephant species with only two types of species remaining that differ immensely. However since that time genetics has provided evidence to support natural selection as the most likely process by which evolution occurs. What is the sele