Science crossword puzzle

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Across
  1. 2. stores waste, food, and water
  2. 3. a type of plant that has special tubes to carry water and nutrients to the plant
  3. 4. an example of one is a salamander
  4. 10. one celled organisms that cause diseases
  5. 12. contains chlorophyll
  6. 13. something that is alive
  7. 14. a creature containing a backbone
  8. 15. a thin skin like layer
Down
  1. 1. something that provides nourishment
  2. 5. an organism that lives on/in another organism without giving anything in return
  3. 6. a creature without a backbone
  4. 7. organelle that is located in the cytoplasm that makes proteins
  5. 8. contains chlorophyll and is mainly aquatic
  6. 9. brain of any cell
  7. 11. fills the cell (animal or plant)