Echinoderms Echinoderms Flashcards
What is an echinoderm?
They have skeletons made of calcium carbonate plates. They have feet that breath suction to surfaces and pry open shells . They have radial symmetry.
What is a sea urchin?
Catch food in their spines and send it to their mouth’s through special grooves along their bodies
What is a starfish? 
They are found in every habitat. They have 2 stomach’s on the bottom. When they eat their stomach comes out of their body and then when they’re done eating it it goes back in. It’s not a fish and there are over 200 species. It have two stomachs and no-brainer blood.
What is a sea cucumber?
They obtain organic matter by investigating sand, or by using tentacles that are covered in sticky substance allowing it to catch plankton, and other small prey
What is a Sandollar?
Eat food particles that are found in the sand. It’s spines and cilia hairs move it’s food to the center of its body where it’s mouth is