Diploblastic organisms lack which layer?
Correct answer: D. Mesoderm
- A. Ectoderm
- B. None of these
- C. Endoderm
- D. Mesoderm
Explanation
On the basis of germ layers, organisms are classified into two categories: Diploblastic Organisms: Have two layers namely ectoderm and endoderm. Diploblastic animals lack mesoderm and thus cannot generate body cavities. Triploblastic Organisms: Have three germ layers namely ectoderm, mesoderm and endoderm.
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