Revision crossword

123456789101112131415
Across
  1. 4. The part of the brain that controls balance and coordination.
  2. 7. A serious infection caused by bacteria producing muscle spasms.
  3. 8. A deep cut or tear in the skin or flesh.
  4. 9. Different forms of an enzyme that perform the same function.
  5. 11. Frequent absence from work or school.
  6. 12. The process of making a person resistant to disease, usually by vaccine.
  7. 13. A disease that spreads from animals to humans.
  8. 14. A group of viruses, some of which cause respiratory disease in humans.
  9. 15. A deadly viral disease eradicated by vaccination in 1977.
Down
  1. 1. White blood cells that fight infection by engulfing microbes.
  2. 2. A parasitic worm, such as a roundworm or tapeworm.
  3. 3. Swelling of body parts caused by parasitic worms blocking lymph vessels.
  4. 5. Lymphatic tissue at the back of the nasal cavity that helps fight infection.
  5. 6. A different form of a gene found at the same place on a chromosome.
  6. 10. Acting at the right time; being prompt.