Mollusca test 2024-2025

Front

How do bivalves eat?

Back

Bivalves are filter feeders, meaning they obtain their food by filtering plankton and other small particles from the water.

Front

What is a two-shelled mollusk called?

Back

A two-shelled mollusk is called a Bivalve.

Front

What is the mantle in mollusks?

Back

The mantle is the outer fold of skin on mollusks that is responsible for excreting the substance that forms the mollusk's shell.

Front

What is the larval form of most mollusks?

Back

The larval form of most mollusks is called a Trochophore.

Front

What is the function of the radula in mollusks?

Back

The radula is a tongue-like organ with tiny teeth used by mollusks to scrape food off surfaces.

Front

What are the three main classes of mollusks?

Back

The three main classes of mollusks are Gastropoda (snails and slugs), Bivalvia (clams and oysters), and Cephalopoda (squids and octopuses).

Front

What is the role of ctenidia in mollusks?

Back

Ctenidia are gills in mollusks that are used for respiration and feeding.

Front

What is the significance of the shell in mollusks?

Back

The shell provides protection, support, and helps prevent desiccation in mollusks.

Front

What is the difference between gastropods and bivalves?

Back

Gastropods have a single shell or no shell and exhibit torsion, while bivalves have two shells and are primarily filter feeders.

Front

What is the purpose of the foot in mollusks?

Back

The foot is a muscular structure used for movement, attachment, and digging in mollusks.