| 1 | They can also suffer potentially fatal placenta problems. | |
| 2 | One part will become the placenta, the other the embryo. | |
| 3 | Part of this adaptation is a response by the embryo to the nutrition it receives through the placenta. | |
| 4 | He and the placenta are equal in size now and fat is beginning to form under his skin. | |
| 5 | The placenta is fully functional by now carrying nourishment to the embryo and carrying waste away. |