Phylum Mollusca - Review

Front

Mollusks are classified as ____ based on embryonic development.

Back

Protostomes

Front

What allows bivalves to close their shells tightly?

Back

Adductor muscles

Front

Mollusks and annelids share which common characteristic?

Back

Coelomate body cavity

Front

Which of the following is a characteristic of bivalves?

Back

Filter feeding

Front

What is the primary role of the visceral mass?

Back

Housing internal organs

Front

Define Phylum Mollusca.

Back

A diverse group of invertebrates characterized by a soft body, often protected by a hard shell, and includes snails, clams, and octopuses.

Front

What is the function of the mantle in mollusks?

Back

The mantle is a significant part of the mollusk's anatomy that secretes the shell and covers the internal organs.

Front

What is a radula and its function in mollusks?

Back

A radula is a toothed, chitinous ribbon used by mollusks for feeding, scraping food off surfaces.

Front

Describe the circulatory system of most mollusks.

Back

Most mollusks have an open circulatory system where blood is not always contained within vessels, allowing it to flow freely through cavities.

Front

What are the three main body parts of a mollusk?

Back

The three main body parts are the foot, visceral mass, and mantle.