Question
Write three characteristics of phylum-Mollusca.
✓
Answer
Body Structure : They are triploblastic, coelomate, non-segmented, and have a soft, slimy body. Most show bilateral symmetry.
Shell: The body is often covered by a hard, calcareous shell (secreted by the mantle). This shell can be external, internal, or absent in some cases.
Movement & Division: The body is divided into three parts: head, visceral mass, and muscular foot (used for locomotion). Examples: Octopus, Snail, Bivalve.
Shell: The body is often covered by a hard, calcareous shell (secreted by the mantle). This shell can be external, internal, or absent in some cases.
Movement & Division: The body is divided into three parts: head, visceral mass, and muscular foot (used for locomotion). Examples: Octopus, Snail, Bivalve.
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