| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| the immune system quizlet | 1.43 | 0.6 | 3070 | 2 | 25 |
| the | 1.34 | 0.2 | 1742 | 46 | 3 |
| immune | 1.21 | 0.9 | 9491 | 90 | 6 |
| system | 1.56 | 1 | 3488 | 32 | 6 |
| quizlet | 0.36 | 0.2 | 3468 | 99 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| the immune system quizlet | 1.96 | 0.1 | 3283 | 18 |
