Answer:
Implantation. (Ans. B)
Explanation:
Implantation is defined as the stage of pregnancy where the embryo stick to the wall of uterus. This parental development stage, the conceptus is known as the blastocyst. With the help of this adhesion embryo receives nutrients, and oxygen from the mother, and are able to grow.
In the case of humans, implantation of the fertilized ovum chances occurs around 9 days after the process of ovulation, and this can range between 6-12 days.
