Implantation, gastrula, and the functions of placenta — task. Science Test Space, Class 10.

Fill in the blanks:

1. The inner cell mass of the blastocyst gives rise to the . The cells of the trophoblast forms the parts of the.

2. serves as a temporary intimate connection between the and the uterine wall to exchange certain materials.

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21. Implantation, gastrula, and the functions of placenta