Phylum Echinodermata: Station 8This includes starfish, and sea urchins

and others. They have a simple nervous system similar to the jelly fish.

They have spines on their surface.

Sea UrchinBrittle Star

Echinodermata Samples and Classification StructuresKingdom Animalia

◦ Phylum Echinodermata Common Name = starfish, sea urchin, britter star, sand dollar,

sea cucumbers and etc. Reproduction = Mostly Sexual (two parents) Symmetry = mostly radial sometimes bilateral. Classification Structures

1. Have spines on the surface and radial symmetry.2. Have 5 rays or arms3. Have many cells tissues and organs4. Have a true body cavity

Samples: 8A = Class echnoidea (sea urchin). 8B = Class asteroidea (starfish) 8C = Class echnoidea (sand dollar)