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प्रश्न
The protective and nutritive layer of the blastocyst is ______.
पर्याय
trophoblast
embryonic disc
inner cell mass
mesoderm
MCQ
रिकाम्या जागा भरा
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उत्तर
The protective and nutritive layer of the blastocyst is trophoblast.
Explanation:
The outer trophoblast helps implantation and contributes to the foetal part of the placenta. The inner cell mass forms the embryo proper.
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