Biology for IGCSE & O level - Reproduction (Section 5 - No. 34)

Which of the following best describes the process of implantation?
The release of the egg from the ovary.
The shedding of the uterine lining.
The attachment of the embryo to the uterine wall.
The fusion of sperm and egg.

Explanation

Implantation is the attachment of the embryo to the uterine wall.

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