Vertebrates & Invertebrates

12345678910111213141516171819
Across
  1. 3. the simplest of all animals
  2. 4. there are ______invertebrates than vertebrates in the world
  3. 9. means more than one cell
  4. 10. spiders
  5. 11. have jointed legs
  6. 12. there are three types of these, flat, round and segmented
  7. 13. dragon fly, lady bug, butterfly
  8. 17. has no backbone
  9. 18. crabs, crayfish, lobster and shrimp
  10. 19. live in water and one land
Down
  1. 1. has a backbone
  2. 2. cold blooded and have scales
  3. 5. snails, oysters, clams, octopus and squid are in this category
  4. 6. doesn't have a brain includes the family of starfish and sea stars
  5. 7. warm blooded and have fur
  6. 8. what fish use to breathe
  7. 14. Jellyfish and Man O' War are examples of these
  8. 15. lay eggs and have feathers
  9. 16. breathe with gills