| A | B |
|---|
| scientific theory | well tested idea |
| scientific law | proven |
| species | group of similiar organisms that can mate |
| variation | differences in members of a species |
| Darwin | observed bird feathers |
| evolution | change over time |
| punctuated equilibrium | rapid change in short time |
| homologous structure | similiar structure in related species |
| adaptation | trait that helps organisms survive |
| natural selection | individuals better adapted more likely to survive |
| overproduction | more offspring are created than can survive |
| isolation | can lead to formation of new species |
