| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| a level biology exchange | 0.3 | 0.5 | 9610 | 57 | 24 |
| a | 0.31 | 0.7 | 312 | 4 | 1 |
| level | 1.53 | 0.2 | 1432 | 4 | 5 |
| biology | 1.33 | 0.1 | 7953 | 42 | 7 |
| exchange | 0.84 | 0.6 | 644 | 46 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| a level biology exchange | 0.57 | 0.2 | 7057 | 16 |
| a level biology exchange and transport | 1.99 | 0.6 | 1315 | 64 |
| a level biology exchange surfaces | 0.82 | 0.7 | 4417 | 86 |
| a level biology exchange questions | 1.99 | 0.7 | 7623 | 59 |
| gas exchange in fish a level biology | 0.44 | 0.5 | 8762 | 28 |
| gas exchange a level biology | 1.15 | 0.5 | 8191 | 4 |
| gas exchange in plants a level biology | 0.82 | 0.1 | 2898 | 81 |
| gas exchange in insects a level biology | 0.55 | 0.5 | 2869 | 52 |
| gas exchange in insects a level biology aqa | 2 | 0.5 | 5369 | 72 |
| exchange surfaces a level biology ocr | 0.82 | 0.6 | 2806 | 44 |
| gas exchange in the lungs a level biology | 1.33 | 0.1 | 9326 | 48 |
| a level biology ocr exchange and transport | 0.6 | 0.4 | 2547 | 99 |
