| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| functions of the respiratory system | 0.26 | 0.5 | 2043 | 66 | 35 |
| functions | 0.09 | 0.5 | 1152 | 56 | 9 |
| of | 1.74 | 0.4 | 6241 | 90 | 2 |
| the | 0.81 | 0.9 | 3533 | 77 | 3 |
| respiratory | 0.25 | 0.1 | 2801 | 20 | 11 |
| system | 1.63 | 0.3 | 5313 | 53 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| functions of the respiratory system | 1.49 | 1 | 3213 | 29 |
