Across
- 4. A chemical produced by a B cell of the immune system that destroys pathogens
- 6. A lymphocyte that produces proteins that help destroy pathogens
- 7. diseases caused by pathogens
- 9. A molecule that the immune system recognizes either as part of the body or as coming from outside the body
- 10. A disorder in which the immune system is overly sensitive to a foreign substance
Down
- 1. A chemical that can kill bacteria without harming a person's cells
- 2. disease-causing organism
- 3. A substance or a factor in the environment that can cause cancer
- 4. A substance that causes an allergy
- 5. A condition in which either the pancreas fails to produce enough insulin or the body's cells can't use it properly
- 8. A disorder in which the respiratory passages narrow significantly
- 9. A disease caused by a virus that attacks the immune system