| often | 7 | degree |
| to life | 5 | transitive-object |
| for its proper function | 5 | purpose |
| organism → be → important | 19 |
| organism → be → essential | 12 |
| organism → be → vital | 11 |
| organism → be → critical | 4 |
| organism → be → crucial | 3 |
| negative | neutral | positive |
| 0.091 | 0.524 | 0.385 |
| Raw frequency | 49 |
| Normalized frequency | 0.648 |
| Modifier score | 0.633 |
| Perplexity | 232.228 |