Question

What are the characteristics of Mollusca?

• A. Bilaterally symmetrical
• B. No cavity
• C. Have a pair of kidneys
• D. All of the above

Answer 1

Answer: (D)

All of the above

Mollusca is the phylum of the animal kingdom. They are bilaterally symmetrical triploblastic. They have segmented soft body covered with the calcareous hard shell. The body has more than two cell layers, tissues and organs. The body does not have the cavity. The body possesses gut with mouth and anus. It has an open circulatory system with a heart and an aorta and a pair of kidneys. Live in most environments.