Question

Match the parts of molluscs to their functions.

• A. Internal transport
• B. Mastication
• C. Secretion of shells
• D. Locomotion

Answer 1

In molluscs,

1) Radula helps in mastication or chewing of food.
2) Mantle layer helps in secretion of the shell.
3) Foot helps in locomotion.
4) The blood of molluscs is called haemolymph. It is blue in colour due to the presence of haemocyanin. Haemocyanin is a copper-containing proteinaceous pigment found in the blood of many invertebrates and transports oxygen throughout the body.