Echinoderms Crossword!!!!

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Across
  1. 4. Surface where the mouth is located
  2. 6. Class that contains sea lillies and feather stars
  3. 8. Class that contains sea cucumbers
  4. 13. Class that contains sea stars
  5. 14. Stomach that is turned inside out through it's mouth
  6. 15. Symmetry in sea star larvae
Down
  1. 1. Radial Symmetry
  2. 2. Connects cardiac stomach to digestive glands
  3. 3. Help keep the surface of the body clean
  4. 5. Opposite from mouth
  5. 7. Class that contains sea urchins and sand dollars
  6. 9. Aid in movement, feeding, and respiration
  7. 10. Makes up the endoskeleton
  8. 11. Skin
  9. 12. Spiny
  10. 16. End of each tube feet