Please answer experts.....
Dear Student,
Option 3 is incorrect as Unio , and Pila belong to phylum Mollusca.The body is divided into an anterior head, a ventral muscular foot and a dorsal visceral mass. The soft body is covered by a hard shell which is not chitaneous. In Mollusca exoskeleton is of calcium carbonate.
Regards
Option 3 is incorrect as Unio , and Pila belong to phylum Mollusca.The body is divided into an anterior head, a ventral muscular foot and a dorsal visceral mass. The soft body is covered by a hard shell which is not chitaneous. In Mollusca exoskeleton is of calcium carbonate.
Regards