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NTA Abhyas NEET2020BotanyAnimal KingdomPractice

Shell of Mollusca is derived from

Options

  1. AFoot
  2. BMantle
  3. CCtenidia
  4. DPlacoid

Correct answer

B. Mantle

Step-by-step solution

Molluscs are the soft-bodied, unsegmented animals covered by a shell. In between the shell and body wall is a covering called the mantle, which secretes the shell and adds to the shell to increase its size and strength as the animal grows. The shell material is secreted by the ectodermic (epithelial) cells of the mantle tissue.

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