| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| respiratory system in reptiles | 1.51 | 1 | 7496 | 24 | 30 |
| respiratory | 1.87 | 0.5 | 2259 | 6 | 11 |
| system | 0.01 | 0.9 | 5006 | 60 | 6 |
| in | 0.41 | 0.3 | 7346 | 75 | 2 |
| reptiles | 1.07 | 1 | 1542 | 75 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| respiratory system in reptiles | 0.29 | 0.9 | 9070 | 47 |
| what organs do reptiles use to breathe | 0.5 | 0.1 | 3505 | 95 |
| what is the breathing organ of reptiles | 1.37 | 0.7 | 5113 | 71 |
| circulatory system in reptiles | 1.73 | 0.4 | 8781 | 28 |
| do reptiles breathe through lungs | 0.56 | 0.2 | 599 | 43 |
| what do reptiles breathe by | 1.34 | 0.2 | 4128 | 96 |
| organs used for breathing reptiles | 1.34 | 0.3 | 7775 | 58 |
| sistema respiratorio en reptiles | 0.55 | 0.9 | 5752 | 78 |
| does reptiles have lungs | 1.77 | 0.5 | 8474 | 14 |
| sistema respiratorio de los reptiles | 0.52 | 1 | 7185 | 14 |
| reptiles breathe with lungs or gills | 1.24 | 0.2 | 789 | 52 |
| how do reptiles breathe gills or lungs | 0.41 | 0.6 | 1789 | 56 |
| sistema respiratorio de reptiles | 1.26 | 0.3 | 9823 | 25 |
| do reptiles do cellular respiration | 0.27 | 1 | 1781 | 72 |
