4 ч 53 мин, 3 апр 2002 г. - Implantation
Описание:
The zygote ends up in the uterus. While this is happening, the zygote begins to split into a cluster of cells. This is called a morula. As it rapidly divides into more cells, it becomes known as a blastocyst and implants itself into the endometrium, or uterine lining. The inner cells in the blastocyst will become the embryo, and the outer cells will become the placenta.
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Дата:
4 ч 53 мин, 3 апр 2002 г.
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~ 23 г назад
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