Question

Relate the concept of natural selection to the process of evolution. What conditions are necessary for natural selection to result in the evolution of a population?

Answer 1

Evolution is the process of change. Organisms changes over time to adapt to their changing environment. The different species we see today may have a common ancestor. But these species have diversity in their characters that is demanded by the environment over time.

Theory of natural selection suggest that some individuals among others develop traits that help them to survive and reproduce. These helpful traits make them adapted to the changing environment. Individuals that's doesn't develop any helpful traits can't survive for a long time . These traits are inheritable. So the next generation will also have these inherited traits that fit them to the environment. For example . There is a massive flood and the environment is flooded by water. The species/ individuals that are only adapted to aquatic ecosystem will survive others will not. Some individuals may develop traits that help them to survive in the aquatic environment over a mean time. Here some species/ individuals will only survive because they develop inheritable traits that help them to survive and reproduce. That defines the process of natural selection.