classification

Edit Answers
1234567891011121314151617181920
Across
  1. 4. It lays eggs and lives under water
  2. 5. To sleep through the winter
  3. 6. Top level of classification
  4. 7. A cross that cannot have offspring
  5. 10. Awake during the night
  6. 11. Where something lives
  7. 13. An animal without a backbone
  8. 15. Does MRS GREN
  9. 17. Things that help an organism survive
  10. 19. When mixed cannot have grandchildren
  11. 20. Both we and dolphins are this
Down
  1. 1. A piece of land that looks different in summer and winter
  2. 2. An animal with 8 legs
  3. 3. Something with a backbone
  4. 4. Looks like a plant but does not make its own food
  5. 8. It lays eggs and has scaly skin
  6. 9. How plant make food
  7. 12. This is how many kingdoms there are
  8. 14. The type of animal that has feathers
  9. 16. Single celled organism WITHOUT a nucleus
  10. 18. Something that unlocks a door