| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| immune system definition biology | 1.44 | 0.2 | 6016 | 53 | 32 |
| immune | 1.88 | 0.3 | 9182 | 69 | 6 |
| system | 0.8 | 0.5 | 2156 | 94 | 6 |
| definition | 0.46 | 1 | 680 | 11 | 10 |
| biology | 1.75 | 0.5 | 4878 | 21 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| immune system definition biology | 1.1 | 0.2 | 5687 | 38 |
