Define implantation.
Answer:
- Embryo is embedded in the thick lining of the uterus i.e., endometrium and the process is known as implantation.
- It occurs on the 6th day after fertilization and is completed about the 11th day.
- After implantation, a disc- like special tissue starts developing between the endometrium layer and the embryo which is known as placenta .
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