Animal Characteristics

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Across
  1. 2. fertilized egg
  2. 3. stage cells arranged in a single layer
  3. 6. outer layer
  4. 7. moves for food
  5. 8. cells divide
  6. 9. gives support and structure to the sponge
  7. 11. down
  8. 13. filter feeders
  9. 14. no symmetry
  10. 16. specialized
Down
  1. 1. blastula pushed in
  2. 4. no organs
  3. 5. creation of egg and sperm
  4. 10. inner layer/digestive tract
  5. 12. up
  6. 15. middle layer