| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| concentration gradient and diffusion | 0.38 | 0.6 | 1565 | 24 | 36 |
| concentration | 0.19 | 0.6 | 2399 | 81 | 13 |
| gradient | 1.04 | 0.2 | 5878 | 53 | 8 |
| and | 0.01 | 0.8 | 1129 | 97 | 3 |
| diffusion | 0.4 | 0.5 | 5746 | 96 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| concentration gradient and diffusion | 1.98 | 1 | 8129 | 26 |
