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Textbook ExpertVerified Tutor
3 Nov 2021

Background and context

  • Presence of mantle and mantle cavity is an unique feature of Phylum Mollusca.
  • Mantle is a dorsal body wall which is soft and fleshy.
  • It is a layer of tissue which lies between the shell and the body.
  • The epidermis of the mantle secretes conchiolin and calcium carbonate that forms the hard covering called the shell.
  • Mantle encloses and protects the internal organs.

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