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Illusion [34]
3 years ago
10

About four or five days after fertilization, a group of cells forms a ball-like structure. What is the name of this structure? A

. Heart B. Placenta C. Blastocyst D. Stem Cell
Biology
2 answers:
tensa zangetsu [6.8K]3 years ago
8 0
I believe the answer is C.
sasho [114]3 years ago
5 0
Your answer would be Blastocyst. 
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