Question

Features of Mollusca ?

Answer 1

Answer:

Mollusca :-

• have organ system .

• Bilateral symmetry.

• Coelomate.

• Segmentation is absent.

• Digestive system is complete .

• Circulatory system is present.

• Respiratory system is present.

☆ External skeleton of shell usually present .

Answer 2

Answer:

• Characteristic Features of Phylum Mollusca
• They are bilaterally symmetrical.
• They are triploblastic, which three layers.
• They show organ system grade of organisation.
• The body is soft and unsegmented.
• Body is divisible into three regions – head, a visceral mass, and ventral foot.
• Body is covered by a mantle and shell.