Across
- 3. fast and stong defence to secondary infection
- 6. stimulate production of antibodies, provide immunity when a pathogen can no longer cause you harm
- 7. non-cellular infection bacterium
- 8. engulf and digest pathogens
- 10. produce antibodies
- 12. something the body recognises as non-self
- 13. smallest blood vessel
- 15. single celled microorganism
Down
- 1. transport oxygen through your body
- 2. what a vaccine tries to achieve
- 4. a method of innoculation
- 5. transports oxygenated blood to the body
- 9. brings deoxygentaed blood from to the heart
- 11. Pumps blood through your body
- 14. help blood clotting