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Q.
Excretory system is absent in
NTA AbhyasNTA Abhyas 2022
Solution:
Echinodermata has complete digestive system with mouth on ventral side (oral or lower) and anus on dorsal side (aboral or upper). The most important feature is the presence of water vascular system. It performs the function of locomotion, capture and transport of food. Excretory system is absent.