| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| the photoreceptors of the retina are called | 1.88 | 0.9 | 5936 | 73 | 43 |
| the | 1.22 | 0.3 | 1505 | 48 | 3 |
| photoreceptors | 1.74 | 0.9 | 6077 | 82 | 14 |
| of | 1.12 | 0.1 | 1723 | 100 | 2 |
| the | 0.31 | 1 | 5807 | 20 | 3 |
| retina | 0.22 | 0.3 | 2842 | 42 | 6 |
| are | 0.98 | 0.5 | 42 | 22 | 3 |
| called | 1.6 | 0.4 | 6962 | 70 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| the photoreceptors of the retina are called | 1.9 | 1 | 2548 | 86 |
| the retina contains photoreceptors called | 0.33 | 0.4 | 6373 | 23 |
| the photoreceptor cells in the retina are | 1.56 | 1 | 9549 | 100 |
| in vision the photoreceptors are called | 0.69 | 0.5 | 7511 | 62 |
| photoreceptors of the retina | 0.53 | 0.5 | 7411 | 8 |
| the retina has two types of photoreceptors | 1.62 | 1 | 6040 | 25 |
| what are the photoreceptors of the eye | 0.5 | 0.5 | 6345 | 3 |
| types of photoreceptors in the retina | 1.44 | 0.8 | 4412 | 45 |
| does the retina have photoreceptors | 0.75 | 0.7 | 3409 | 48 |
| the back of the eye has photoreceptors | 1.51 | 0.2 | 6928 | 15 |
| part of the retina that lacks photoreceptors | 0.75 | 0.9 | 9250 | 27 |
| part of the eye that contains photoreceptors | 1.69 | 0.4 | 3962 | 89 |
| photoreceptor layer of retina | 1.78 | 0.7 | 7908 | 74 |
| retina function and photoreceptors | 1.5 | 0.6 | 7528 | 15 |
| the photoreceptor cells for vision are | 0.35 | 0.5 | 3319 | 31 |
| photoreceptor or eye part | 0.44 | 0.8 | 9769 | 88 |
