Echinoderms Echinoderms

Question 1

What is an echinoderm?

Answer 1

They have skeletons made of calcium carbonate plates. They have feet that breath suction to surfaces and pry open shells . They have radial symmetry.

Question 2

What is a sea urchin?

Answer 2

Catch food in their spines and send it to their mouth’s through special grooves along their bodies

Question 3

What is a starfish? 

Answer 3

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.

Question 4

What is a sea cucumber?

Answer 4

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

Question 5

What is a Sandollar?

Answer 5

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