| Balfour's approach was based firmly on homology of the germ layers and the ability of embryological homology to reveal phylogenetic relationships. |
| She joined our team in 2003 and is now responsible for all embryological and andrological services provided at our unit. |
| The obturator artery is very variable in origin and no embryological explanation has been found. |
| A direct consequence of this theory of embryological origin bears on the question of species transformism. |
| These points, in view of our knowledge of embryological modifications, cannot be regarded as great difficulties in my hypothesis. |
| Haeckel noted that multicellular animal organisms follow a common pattern in early embryological development. |
