| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| what are the 2 main type of photoreceptors | 0.1 | 0.2 | 8322 | 80 | 42 |
| what | 1.38 | 0.1 | 7324 | 69 | 4 |
| are | 1.15 | 0.1 | 8500 | 49 | 3 |
| the | 1.49 | 0.8 | 9533 | 58 | 3 |
| 2 | 1.7 | 0.7 | 3083 | 99 | 1 |
| main | 1.48 | 0.6 | 6535 | 67 | 4 |
| type | 1.33 | 0.5 | 4812 | 22 | 4 |
| of | 0.9 | 0.7 | 2970 | 74 | 2 |
| photoreceptors | 1.85 | 0.9 | 3212 | 9 | 14 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what are the 2 main type of photoreceptors | 0.16 | 0.7 | 6413 | 1 |
