Immune System Vocab Crossword

1234567891011121314
Across
  1. 2. Some are helpful to living things and some cause disease
  2. 9. Disease caused by heredity or environmental factors
  3. 12. An organism, virus, or protein that causes disease
  4. 14. is a substance prepared from killed or weakened pathogens
Down
  1. 1. A disease caused by a pathogen
  2. 3. A specialized protein that binds to an antigen and tags it for destruction
  3. 4. Made up of tissues and specialized white blood cells that attack foreign substances in the body
  4. 5. Tiny particles that have their own genetic material but depend on living things to reproduce
  5. 6. An organism that lives and feeds on another organism
  6. 7. provides external protection against pathogens that may enter the body.
  7. 8. is a substance that triggers a response by the immune system, and can be a pathogen or any foreign material in the body.
  8. 10. The ability to resist or recover from an infectious disease
  9. 11. recognize and attack foreign substances in the body.
  10. 13. They decompose, or break down dead plants and animals for use by other organisms