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barry barry
wrote...
Posts: 11630
10 years ago
The tiny ball of 16 cells found freely floating in the uterine cavity is called a:
A) blastocyte
B) zygote
C) morula
D) placenta
E) trophoblast
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JuleJule
wrote...
Posts: 1
Rep: 0 0
10 years ago
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Source  wikipedia
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barry Author
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10 years ago
Thanks
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