blood

1234567891011121314151617181920
Across
  1. 2. mess of blood
  2. 4. result during violence
  3. 6. in the blood circulation system
  4. 7. acid
  5. 9. blood cells/helps fight infections
  6. 10. blood cells/what makes blood its colour
  7. 13. walled tubes
  8. 14. sequence of direct ancestry
  9. 15. exchange of water/chemicals
  10. 16. point of place something begins
  11. 18. mythical creature who took blood
  12. 19. are 4 different groups a/b/ab/o
  13. 20. person who donates
Down
  1. 1. in clotting
  2. 3. are five main things of this
  3. 5. to have no blood
  4. 8. containing the same blood
  5. 11. yellow holds blood cells
  6. 12. who share the same blood
  7. 17. will normally find this on trees