implantation is the stage in the embryonic development of mammals in which the blastocyst hatches as the embryo, adheres and invades into the walls of the female's uterus. Implantation is the first stage of gestation, and when successful the female is considered to be pregnant.
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Explanation:
implantation is the stage in the embryonic development of mammals in which the blastocyst hatches as the embryo, adheres and invades into the walls of the female's uterus. Implantation is the first stage of gestation, and when successful the female is considered to be pregnant.