| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| what are photoreceptor cells | 1.9 | 0.5 | 9675 | 16 | 28 |
| what | 0.97 | 0.1 | 8633 | 68 | 4 |
| are | 0.09 | 0.8 | 5284 | 88 | 3 |
| photoreceptor | 1.41 | 0.8 | 4872 | 68 | 13 |
| cells | 1.96 | 0.7 | 5792 | 18 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what are photoreceptor cells | 0.53 | 0.2 | 2139 | 14 |
