Question

The most characteristic feature of mollusc is the presence of:

• A. Hard - body
• B. Shell
• C. Mantle
• D. Foot

Answer 1

The correct option is C Mantle

• Molluscs are soft bodied organisms with hard skeleton. the skeleton is made up of hard calcareous shell like structure.
• The mantle is an important part in the body of molluscs. It forms the dorsal body wall.
• The mantle covers the organs of digestion, reproduction and movement.The mantle leads to formation of a mantle cavity.
• This cavity is formed by the mantle skirt. The mantle skirt is the result of the double fold of mantle, which encloses a water space.
• This space contains the gills, anus and organs for taste, excretion and reproduction organs.
• Thus, the correct answer is option C.