A) ectoderm and endoderm
B) mesoderm and ectoderm
C) body wall and ectoderm
D) mesoderm and endoderm
Correct Answer: D
Solution :
Coelom is the name of internal cavity which is filled with a fluid and is lined by peritoneum, derived from mesoderm. It is either formed by splitting a mesoderm (known as schizocoelom as in annelids) or as outgrowth of embryonic gut (enterocoelom as in echinoderms and chordates). So coelom (body cavity) is a cavity found between mesoderm and endoderm (body wall).
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