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| 1. |
Define implantation and placenta |
| Answer» Implantation refers specifically to the attachment of the fertilized egg to the uterine lining, which occurs approximately 6 or 7 days after conception (fertilization).Implantation is when the fertilized egg enters the endometriosis, or uterine lining, and burrows into it in order to begin cell division.\xa0Placentas is a flattened circular organ in the uterus of pregnant eutherian mammals, nourishing and maintaining the fetus through the umbilical cord. | |