Mollusks and Worms

Front

What are mollusks?

Back

Mollusks are a diverse group of invertebrates that include snails, clams, and octopuses, characterized by a soft body, often protected by a hard shell.

Front

What is the main body structure of a mollusk?

Back

The main body structure of a mollusk includes three parts: the foot, the visceral mass, and the mantle.

Front

What is the function of the foot in mollusks?

Back

The foot is a muscular structure used for locomotion, attachment, and feeding.

Front

What is the mantle in mollusks?

Back

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

Front

What are the main classes of mollusks?

Back

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

Front

What is a flatworm?

Back

Flatworms are a group of invertebrates that have a flattened body and are part of the phylum Platyhelminthes.

Front

What are the key characteristics of flatworms?

Back

Flatworms are characterized by bilateral symmetry, aacoelomate body plan, and a lack of specialized respiratory and circulatory systems.

Front

What is the function of the sucker in parasitic flatworms?

Back

The sucker is used by parasitic flatworms to attach to their host and feed on their blood or tissues.

Front

What is the scolex in tapeworms?

Back

The scolex is the head of a tapeworm, equipped with hooks and suckers for attachment to the host's intestines.

Front

What is the role of nerve cords in flatworms?

Back

Nerve cords in flatworms are part of their nervous system, coordinating movement and responses to the environment.