Echinoderms

Front

What structure helps a sea star breathe?

Back

Dermal gills are the structures that help a sea star breathe.

Front

What is the correct order of water flow in the water vascular system of a sea star?

Back

Madreporite, stone canal, ring canal, radial canal, ampullae, tube feet.

Front

What are the microscopic bony plates that make up a sea star's endoskeleton called?

Back

Ossicles.

Front

How does a sea star eat a bivalve?

Back

A sea star can eat a bivalve by digesting it by pushing its stomach into its shell.

Front

What do brittle stars lack compared to sea stars?

Back

Brittle stars do not have a complete digestive system.

Front

What is the function of tube feet in echinoderms?

Back

Tube feet are used for movement, feeding, and respiration.

Front

What is the role of the madreporite in a sea star?

Back

The madreporite is the entry point for water into the water vascular system.

Front

What type of symmetry do echinoderms exhibit?

Back

Echinoderms exhibit radial symmetry.

Front

What is the primary habitat of most echinoderms?

Back

Most echinoderms are found in marine environments.

Front

What is the significance of the water vascular system in echinoderms?

Back

The water vascular system is crucial for locomotion, feeding, and gas exchange.