8. What is implantation?
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Implantation is when a fertilized egg cell attaches to the wall of uterus in the early pregnancy.
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In humans, implantation is the stage of pregnancy at which the embryo adheres to the wall of the uterus. At this stage of prenatal development, the conceptus is called a blastocyst. It is by this adhesion that the embryo receives oxygen and nutrients from the mother to be able to grow.
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