Question

4. What are molluscs? Give four examples.​

Answer 1

Answer:

Molluscs :

Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda.

The members of Mollusca are known as molluscs .

Characteristics of Molluscs -

• They are mostly found in marine and freshwater.
• They exhibit organ system level of organization.
• Their body has a cavity.
• The body is divided into head, visceral mass, muscular foot and mantle.
• The head comprises of tentacles and compound eyes.

Example :

1. Bivalves
2. Mussels
3. Octopus
4. Oyster

Answer 2

• Molluscs are mollusks that live in the sea.
• After the Arthropoda, Mollusca is the second-largest phylum of invertebrates. Molluscs are Mollusca's members.
• Molluscs are usually found in marine and freshwater environments.
• They are organized at the level of organ systems.
• There is a hole in their body.
• The head, visceral mass, muscular foot, and mantle are the four divisions of the body.
• Tentacles and complex eyes adorn the head.
• Bivalves Mussels Octopus Oyster