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True coelom is the space lying between the alimentary canal and body wall enclosed by the layers of
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- ectoderm on both sides
- endoderm on one side and ectoderm on the other
- mesoderm on one side and ectoderm on the other
- mesoderm on both sides
Correct Option: D
Coelom is a fluid filled space between body wall and alimentary canal which is lined by parietal peritoneum (mesoderm) on the outer side and visceral peritoneum (mesoderm) on the inner side.