Year 7 science: Classification.

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Across
  1. 1. a group of organisms that look similiar to eachother
  2. 4. an organisms whose boy temperature changes with the environment
  3. 7. a scientist who classifys organisms
  4. 9. it is found in a cell and contains all the DNA
  5. 12. a classification system where organisms are divided into five kingdoms
  6. 13. a double name system to classify organisms
  7. 16. an organism withn external skeleton or no skeleton
  8. 17. an internal skeleton
  9. 18. organisms that soak up nutrients from other living things
  10. 20. a unicellular living thing that belongs to Kingdom Protista
  11. 21. tissue a tube that transports water from the roots to leaves
  12. 22. a protective wall on some cells
Down
  1. 2. a microscopic living thing that floats throughh the air or salt water
  2. 3. organisms with more than one cell
  3. 4. an external skeleton
  4. 5. a organism that produces it's own food
  5. 6. a group of closely related species
  6. 8. a type of branched key with two branches
  7. 10. a tool used to classify organisms
  8. 11. an organism with only one cell
  9. 14. an organisms with an endoskeleton
  10. 15. a key to idetify species by their physical traits
  11. 19. a single-celled organism with a cell wall but no nucleus