In Mammals,embryonic Cells Form an Inner Cell Mass That Will

question 5

Multiple Choice

In mammals,embryonic cells form an inner cell mass that will become the body of the embryo and a layer of surrounding cells that will become the chorionic membrane and placenta.What are these surrounding cells called?

• A)blastocoel
• B)yolk
• C)blastodisc
• D)trophoblast

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