| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| what are the 2 types of photoreceptors | 1.57 | 0.4 | 8289 | 52 | 38 |
| what | 1.27 | 0.8 | 974 | 71 | 4 |
| are | 0.11 | 0.3 | 2002 | 70 | 3 |
| the | 0.99 | 0.1 | 3154 | 21 | 3 |
| 2 | 1.98 | 1 | 3932 | 84 | 1 |
| types | 1.87 | 0.8 | 8321 | 4 | 5 |
| of | 1.82 | 0.3 | 1144 | 68 | 2 |
| photoreceptors | 1.67 | 0.5 | 8166 | 13 | 14 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what are the 2 types of photoreceptors | 1.68 | 0.7 | 4504 | 27 |
| 2 types of photoreceptors | 0.45 | 0.9 | 9788 | 25 |
| what are the two groups of photoreceptors | 0.9 | 0.3 | 3176 | 20 |
| two types of photoreceptors in the eye | 0.88 | 0.8 | 9559 | 31 |
| types of photoreceptors in the retina | 1.23 | 0.7 | 8949 | 55 |
| the retina has two types of photoreceptors | 1.1 | 0.7 | 111 | 14 |
| what are the photoreceptors of the eye | 1.31 | 0.9 | 571 | 43 |
| how many photoreceptor types in human eye | 0.7 | 0.4 | 4408 | 97 |
| contains all of the photoreceptors | 1.11 | 0.4 | 126 | 23 |
| another word for photoreceptors | 1.75 | 0.9 | 4407 | 22 |
| how many photoreceptors are in the retina | 0.28 | 0.9 | 6393 | 81 |
| two types of thermoreceptors | 1.37 | 0.6 | 4890 | 8 |
| which photoreceptor cells are more numerous | 1.45 | 0.7 | 6897 | 40 |
| which photoreceptor is more numerous | 1.56 | 0.9 | 2124 | 63 |
| contains millions of photoreceptors | 1.37 | 0.8 | 5055 | 64 |
| what are photoreceptor cells | 0.16 | 0.2 | 6045 | 83 |
