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Home Q & A Board Biology-Related Homework Help General Biology
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Eric8925 Eric8925
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6 years ago
Chorionic villi contain
  a. germ cells.
  b. lymphatic vessels.
  c. endometrial cells.
  d. blood vessels.
  e. the allantois.

Question 2

The chorion develops from the
  a. trophoblast.
  b. blastocyst.
  c. blastomere.
  d. gastrula.
  e. morula.
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saysaysaysay
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