Exam 3 part two

Front

What type of symmetry do echinoderm larvae exhibit?

Back

Bilateral symmetry.

Front

What structure do cephalopods use for propulsion in water?

Back

Funnel.

Front

Which phylum includes gastropods, bivalves, and cephalopods?

Back

Mollusks.

Front

What is the function of the water vascular system in sea stars?

Back

It is used for locomotion, feeding, and gas exchange.

Front

Which structure is NOT part of the water vascular system of a sea star?

Back

Osculum.

Front

What type of symmetry do adult echinoderms have?

Back

Pentamerous (radial) symmetry.

Front

What is the primary function of the water vascular system in echinoderms?

Back

To facilitate movement and feeding.

Front

Name a characteristic feature of mollusks.

Back

They have a soft body, often protected by a hard shell.

Front

What are the three main classes of mollusks?

Back

Gastropods, bivalves, and cephalopods.

Front

How do cephalopods differ from other mollusks?

Back

They have a well-developed nervous system and are capable of complex behaviors.