Invertabrates

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Across
  1. 2. 4 pairs of legs
  2. 7. 4 wings
  3. 10. has no back bone
  4. 11. armour like scales
  5. 14. body segmented internally
  6. 15. paired,jointed legs
  7. 17. body covered with a soft spinhy skin
  8. 20. soft body usually covered with a shell
Down
  1. 1. flat bodies
  2. 3. has tentacles
  3. 4. less than 4 wings
  4. 5. 5 or more pairs of legs
  5. 6. spongy body with holes
  6. 8. leathery wings
  7. 9. wings membranous
  8. 12. worm-shaped bodies
  9. 13. 3 pairs of legs
  10. 16. tublar body
  11. 18. flatened body
  12. 19. soft round bodies