Which Extraembryonic Tissue Burrows Into, and Thus Attaches To, Maternal

question 44

Multiple Choice

Which extraembryonic tissue burrows into, and thus attaches to, maternal tissues?​

• A) ​the amnion
• B) ​the yolk sac
• C) ​the chorion
• D) ​the blastocyst protein coat
• E) ​the inner cell mass

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