Question
Biology Question on Kingdom Animalia
Shell of molluscs is derived from
A
foot
B
mantle
C
ctenidia
D
radula.
Answer
mantle
Explanation
Solution
The shell in molluscs is formed from mantle. It is made up of calcium carbonate. Shell may be external (e.g., most of molluscs), internal (e.g., slug, cuttlefish, squid) or absent (e.g., Octopus).