The inner portion of the zygote that implants in the uterine lining is called the

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Quizplus · Accepted Answer

The blastocyst is the stage of development of the zygote when it implants in the uterine lining. It is composed of an inner cell mass that will eventually become the embryo, and an outer layer of cells that will form the placenta. The conceptus refers to the developing embryo and associated structures, including the placenta. Therefore, while A and D are related to later stages of development, the blastocyst is the specific structure that implants in the uterine lining.

The Inner Portion of the Zygote That Implants in the Uterine