Biological evolution is the genetic changes that occur in a population over successive generations. It is a process whereby changes occur on the genetic level of a population and it is being transferred from one generation to another. Biological evolution takes place as a result of natural selection and its result may be minimal (unnoticeable) or significant (noticeable). Biological evolution includes microevolution (minor genetic changes within a specie or population) and macroevolution (large evolutionary changes above the species level).
Explanation: biotic factors depend among abiotic factors, meaning that living things need non-living things in order to survive. That also means that biotic factors everywhere including the surrounding area need to be thought of in this sense so that they are able to survive in the environment they are in.