Question

short note on phylum mollusca​

Answer 1

Answer:

Syuballus of 9 th class

ch - 7

Phylum: Mollusca. They have soft, unsegmented and muscular body. They are aquatic (usually marine, some are fresh water) and some are terrestrial found in damp and moist places. ... Body is covered by calcareous shell and divided into head, mantle, foot and visceral mass.

Mollusca, meaning “soft-bodied,” is one of the largest phylums in the animal kingdom. The word mollusc (or mollusk) derives from the Latin word “mollis,” which means “soft.” There are an estimated 200,000 species of mollusk worldwide accounting for nearly a quarter of all marine life.