tristanart02 tristanart02
  • 23-05-2017
  • Biology
contestada


______ forms the outer layer of an embryo.



mesoderm


ectoderm


endoderm


none of the above

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laniajackson200
laniajackson200 laniajackson200
  • 25-05-2017
the answer is b ectoderm
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