Microscopic Organisms

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Across
  1. 3. Tiny living organisms made of a single cell
  2. 5. A tiny infectious particle that must enter a living cell to reproduce
  3. 6. Able to spread from one person to another
  4. 7. A substance that helps the body prepare to fight a disease
  5. 10. Chemicals used to kill or stop the growth of bacteria
  6. 11. The body's fighters against disease
Down
  1. 1. To make more of the same kind of organism
  2. 2. The instuctions that tell an organism what to do
  3. 4. The ability of bacteria to survive an antibiotic
  4. 8. When harmful microorganisms enter and multiply in the body
  5. 9. A living organism that a virus uses to reproduce