प्लेसेण्टा की बाह्य सतह, जो अर्धपारगम्य तथा हॉर्मोन स्त्रावी होती है, कहलाती है (A) केवल एम्नीओन...

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प्लेसेण्टा की बाह्य सतह, जो अर्धपारगम्य तथा हॉर्मोन स्त्रावी होती है, कहलाती है
(A) केवल एम्नीओन
(B) केवल कोरीओन
(C) केवल एलेन्टोइस
(D) एलेन्टोकोरीओनिक संरचना
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