Respuesta :

Implantation

Fertilization is the process in which the head of the sperm cell combines with the egg cell to form a zygote. This zygote then travels up the vaginal canal to become implanted at the uterus and form an embryo. Through implantation, the embryo is able to join to its mother and receive the nourishment it requires in order to grow and eventually be born.

 The placenta begins to form.