| A | B |
|---|
| evolution | genetic change in species over time |
| natural selection | survival of the fittest - evolution's mechanism |
| environmental change | driving force of evolution |
| overproduction | too many individuals born in a species |
| genetic variation | each individual is unique |
| struggle to survive | competition for limited resources |
| successful reproduction | survivors pass on favorable traits to offspring |
| adaptations | traits or features |
| Charles Darwin | founding father of modern evolutionary theory |
| mutation | genetic mistakes which are sources of new variations |
