Echinodermata

Front

What is the phylum that includes echinoderms?

Back

Echinodermata

Front

What organ in a starfish can turn itself inside out when feeding?

Back

Cardiac stomach

Front

What is the system of fluid-filled tubes in echinoderms called?

Back

Water vascular system

Front

Which echinoderm is known for its flat, disc-like shape and is often found in sandy environments?

Back

Sand dollar

Front

What is an example of an Echinoidea member?

Back

Sand dollar

Front

What type of symmetry do echinoderms exhibit as adults?

Back

Radial symmetry

Front

What is the primary function of the madreporite in echinoderms?

Back

It regulates water intake for the water vascular system.

Front

What are the small, tube-like structures used for movement in echinoderms called?

Back

Tube feet

Front

What is the main characteristic that distinguishes echinoderms from other invertebrates?

Back

They have an internal skeleton made of calcareous plates.

Front

What type of habitat do most echinoderms inhabit?

Back

Marine environments