Evolution by Natural Selection

1. Organisms produce many offspring but not all survive.

2. There is great genetic variation within a species.

3. Competition for limited resources (food, mates etc) take place.

4. Species that have the most suitable characteristics to win resources survive the longest and produce the most offspring.

5. The offspring inherit the same “helpful” characteristics of their parents.

6. Competition and selection begins again.


The changes brought about by evolution may result in new species.