| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| open vs closed system circulatory | 1.13 | 0.7 | 2680 | 86 | 33 |
| open | 1.03 | 0.3 | 505 | 94 | 4 |
| vs | 1.6 | 0.8 | 9487 | 35 | 2 |
| closed | 0.86 | 0.3 | 778 | 70 | 6 |
| system | 0.97 | 0.3 | 3030 | 99 | 6 |
| circulatory | 1.84 | 1 | 3986 | 90 | 11 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| open vs closed system circulatory | 1.08 | 0.1 | 924 | 33 |
