biology - cells

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Across
  1. 3. made up of different tissues working together
  2. 6. leaf cells are packed with these
  3. 7. carries oxygen around the body
  4. 9. things that make a cell different
  5. 10. where chemical reations take place
  6. 14. cells that are adapted to do a job
  7. 16. what a cell does, it's job
Down
  1. 1. lets substances pass in and out of the cell
  2. 2. has a streamlined head and a long tail male gamete
  3. 4. has a large surface area to collect water
  4. 5. where the genetic material is kept
  5. 8. made up of different organ systems
  6. 11. made up of a group of similar cells
  7. 12. the building blocks of life
  8. 13. where respiration takes place
  9. 15. has a jelly layer to attract sperm
  10. 17. carries electrical messages/impulses