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Title: Human trophoblasts Post by: ppk on May 23, 2011 Human trophoblasts
A) form the inner cell mass. B) are the precursors of the mesoderm. C) form from ectoderm. D) are of maternal origin and function in embryo gas exchange. E) are of embryonic origin and function in embryo nutrition. Title: Re: Human trophoblasts Post by: bio_man on Jun 4, 2011 Content hidden
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