| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| circulation definition biology | 1.32 | 0.9 | 2473 | 44 | 30 |
| circulation | 1.04 | 0.1 | 5096 | 36 | 11 |
| definition | 0.07 | 0.5 | 9975 | 61 | 10 |
| biology | 1.78 | 0.5 | 6846 | 37 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| circulation definition biology | 1.21 | 0.1 | 2298 | 16 |
| circulatory definition biology | 1.69 | 0.2 | 9282 | 84 |
| pulmonary circulation definition biology | 1.28 | 0.1 | 9720 | 94 |
| systemic circulation definition biology | 1.08 | 0.8 | 7230 | 45 |
| double circulation definition biology | 1.33 | 0.2 | 6493 | 73 |
| circulation marine biology definition | 1.94 | 1 | 8259 | 16 |
| single circulation definition biology | 0.04 | 0.6 | 58 | 77 |
| circulatory system definition biology | 0.54 | 0.5 | 2126 | 94 |
| open circulatory system definition biology | 1.33 | 0.5 | 232 | 23 |
| closed circulatory system definition biology | 1.37 | 0.2 | 2166 | 5 |
