Animal Characteristics and Sponges/cnidarians

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Across
  1. 5. 32 or more cells
  2. 7. cells that have a nucleus
  3. 9. fertilized egg
  4. 12. the creation of egg and sperm
  5. 14. cells that transport nutrients/sperm
  6. 15. can move
  7. 16. many cells that are specialized
Down
  1. 1. becomes the skin and nervous tissue
  2. 2. able to produce both egg and sperm cells
  3. 3. the study of animals
  4. 4. gets energy from outside sources
  5. 6. sessile and tentacles go up
  6. 8. motile and tentacles go down
  7. 10. one side of blastula has been pushed in
  8. 11. large opening at top of sponge
  9. 13. becomes the digestive tract