Structure of Bacteria and Viruses

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Across
  1. 4. an organism that can't make its own food
  2. 5. a chemical that kills bacteria or slows their growth without harming body cells
  3. 7. takes over the host and multiples
  4. 8. an organism whose cells contain nuclei
  5. 9. has no oxygen
  6. 11. a virus that infects bacteria
  7. 12. consisting of many cells
Down
  1. 1. single celled organisms that lack a nucleus;prokaryotes
  2. 2. the gradual change in species over time
  3. 3. a long whip like structure that allows a cell to move
  4. 4. the organism that a parasite or virus lives on or in
  5. 6. an organism that makes its own food
  6. 10. has oxygen