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.Добавлено на ленту времени:
Дата:
4 ч 53 мин, 3 апр 2002 г.
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~ 23 г назад