Across
- 2. Found in sea urchins and sand dollars, this is a fused endoskeleton
- 3. The small bulblike structure above the tube feet that moves water into the tube feet
- 7. This Class contains the sea cucumber
- 9. The gender of starfish
- 12. This stomach of the sea star is inserted into the soft body of the clam to allow it to feed on its prey.
- 13. The small free-swimming larva of the echinoderm
- 14. Structures that the echinoderms use for movement, breathing, and feeding
- 16. The Class that contains the sea urchin and sand dollar
- 17. Small platelike structure that comprises the endoskeleton of the echinoderm
Down
- 1. The Class that contains the sea star/starfish
- 4. Small pincerlike structures on the aboral side of the sea star that helps keep it clean and protects the sea star
- 5. Opening on the aboral side of the sea star that water enters as it moves into the water vascular system
- 6. All chordates contain this specific structure
- 8. This Subphylum contains the tunicates
- 10. Opening within the lancelets that remove water once it has been filtered
- 11. The common organism found in the Subphylum Cephalochordata
- 15. A hard outer covering of the tunicates