Question

Which among the following is not the characteristic of Phylum Mollusca?

• A. Only marine
• B. Soft bodied organisms
• C. Unsegmented
• D. Presence of shell

Answer 1

The correct option is A Only marine

• Phylum Mollusca is the second largest phylum of the animal kingdom. They are present in both aquatic (fresh and marine water) and terrestrial habitats.
• They are soft bodied animals without segmentation. It contains a distinct head, muscular foot and a visceral hump.
• They possess a shell. It is secreted by mantle and is made up of calcium carbonate. It can be internal, external or even absent.