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Q.
A file-like rasping organ for feeding is observed in:
NTA AbhyasNTA Abhyas 2020Animal Kingdom
Solution:
Molluscs are terrestrial or aquatic (marine or fresh water) having an organ-system level of organisation. They are bilaterally symmetrical, triploblastic and coelomate animals. The mouth contains a file-like rasping organ for feeding, called radula.