| Antithetically, where more common polygenetic morphogenesis occurs, some mixture of tectonic, marine, or climatic effects is superimposed on the setting, and a hybrid suite of landforms results. |
| One reason might be that T2Dm is a polygenetic disease, but there is another more important reason. |
| Since geomorphic processes under arid, humid, glacial, and possibly other climate conditions can induce particular landforms, areas subject to periodic climate change often show polygenetic landform associations. |
| The polygenetic emergence of writing is, in itself, significant in several ways. |
| With few exceptions, the landforms are polygenetic. |
| This condition makes it appear quite possible that the family may be polygenetic. |
