Reproductive system, excretory system, circulatory system and respiratory system developed from:
Correct answer: C. Mesoderm
- A. Ectoderm
- B. Endoderm
- C. Mesoderm
- D. Ectoderm and endoderm
Explanation
Ectoderm forms skin and nervous system. Endoderm forms lining of digestive system and rest of the systems in triploblastic animals originate from mesoderm.
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