Question

What are the characteristics of mollusca?
(Any 5)​

Answer 1

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.

Answer 2

1. they are mostly marine
2. they usually show bilateral symmetry
3. the body of molluscs is unsegmented
4. they have a hard covering called shell
5. they have blood filled cavity known as haemocol

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