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genderma genderma
wrote...
Posts: 4967
9 years ago
The circulatory system and the skeleton are ultimately formed by which embryonic layer of cells?
A) endoderm
B) mesoderm
C) ectoderm
D) trophoblast
Textbook 
The World of Children

The World of Children


Edition: 3rd
Author:
Read 279 times
3 Replies
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Answer verified by a subject expert
yariyari
wrote...
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Posts: 8207
9 years ago
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genderma Author
wrote...
9 years ago
I just doubled-checked your answer with my friend, you're correct.
wrote...
9 years ago
You're very welcome Happy Dummy
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