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Title: The following is true of the placenta: Post by: robsoria1 on Feb 6, 2018 The following is true of the placenta:
a. It is formed from trophoblast cells at the site of implantation. b. Maternal and fetal blood mix in nutrient exchange. c. The placental barrier protects the fetus from viral infections. d. It begins functioning at the 6th week of em-bryonic development. Title: The following is true of the placenta: Post by: oliviabowling on Feb 6, 2018 Content hidden
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