Answer:
The uterus sheds an unfertilized egg along with the endometrium.
Step-by-step explanation:
Once a female reaches puberty, the uterus sheds an unfertilized egg along with the endometrium .
The endometrium is a layer of cells that lines the uterine cavity and plays a very important role during ovulation. Every month it gets thicker to receive the fertilized egg. If fertilization of the released egg does not occur, the developed endometrium is eliminated through menstruation.