1. Organism(s) Sea Urchin, Brittle Stars, Sea Cucumbers, and Sea Stars
Phylum: Echinoderms

2. Symmetry:_______________ Body Plan:
Endoskeleton (what does that mean?)
Spiny Skin
Lack Body Segments
Coelomate -have a fluid filled body cavity called a coelom with a complete lining called peritoneum derived from mesoderm (one of the three primary tissue layers).

4. Feeding: Water Vascular System Tube Feet
The water vascular system is a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. The system is composed of canals connecting numerous tube feet.

5. Respiration/Circulation/Excretion
1 opening
Ring Canal
Tube Feet-Gas Exchange

6. Response
Marine Environment

7. Movement
Tube Feet

8. Reproduction
Sexual
Can regenerate
Video