Answer:
Babies come from a combination of a man's sperm and a woman's egg. When a man and a woman have sexual intercourse, the man's sperm is released into the woman's vagina. From there, the sperm travel through the cervix and into the uterus. If the woman is ovulating, meaning that she has released an egg from her ovary, then the sperm can fertilize the egg.
Once the sperm and egg meet, fertilization occurs, and the fertilized egg begins to divide and grow. It then implants itself into the lining of the woman's uterus, where it continues to develop into an embryo and eventually a fetus.
The fetus receives all its nutrients and oxygen through the umbilical cord, which is connected to the placenta. The placenta is an organ that forms during pregnancy and allows for the exchange of nutrients, oxygen, and waste between the mother and the fetus.
Over the course of approximately nine months, the fetus continues to grow and develop inside the mother's uterus. When the baby is fully developed and ready to be born, the mother goes into labor. During labor, the muscles of the uterus contract, pushing the baby through the birth canal and out of the mother's body.
So, in summary, babies come from the combination of a man's sperm and a woman's egg, which fertilize and develop into a fetus inside the mother's uterus.
Step-by-step explanation: