| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| charles darwin natural selection theory | 0.64 | 0.4 | 539 | 69 |
| charles darwin natural selection theory date | 1.04 | 0.9 | 523 | 38 |
| charles darwin's theory of natural selection | 1.81 | 0.5 | 3790 | 8 |
| charles darwin on natural selection | 1.46 | 0.8 | 7158 | 16 |
| darwin natural selection theory | 0.38 | 0.5 | 7409 | 67 |
| charles darwin evolution by natural selection | 1.8 | 1 | 2409 | 97 |
