In mouth cavity of many molluscs there is a rasping tongue like structure_________provided with many horny teeth.
Correct answer: B. Radula
- A. Ligule
- B. Radula
- C. Mantle
- D. Muscle
Explanation
The radula is a rasping, tongue-like ribbon bearing many horny teeth, used by most molluscs to scrape or cut food. The mantle is a tissue covering the visceral mass, whereas a ligule and muscle are not the characteristic toothed feeding structure.
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