immune system crossword

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Across
  1. 2. A substance that contains weakened pathogens used to train the body to fight it.
  2. 6. A foreign bacteria or virus that causes illness.
  3. 8. The portion of white blood cells and plasma in blood.
  4. 9. A white blood cell that ingests pathogens to destroy them.
  5. 10. A protein that fights pathogens and toxins.
  6. 11. A non living thing that contains DNA and invades a cell.
  7. 12. A white blood cell that destroys viruses.
Down
  1. 1. A white blood cell that produces proteins to destroy pathogens.
  2. 3. A protein made by B-Cells to destroy pathogens.
  3. 4. Where B-Cells are produced.
  4. 5. A bacteria killing chemical used to get rid of bacterial infections.
  5. 7. Where T-Cells are produced.