Immune system

12345678910
Across
  1. 3. Whats another name for invaders that can cause diseases?
  2. 7. White blood cells can be found in the _______ stream
  3. 8. What do we call tiny invaders that create diseases?
  4. 9. Active immunity and ______ immunity
  5. 10. True or false. Antibodies ignore good cells and only attack the bad ones.
Down
  1. 1. The spleen, lymph nodes, thymus, and bone marrow are _______ in the immune system.
  2. 2. Diseases fighting cells are _______ and ready for battle.
  3. 4. The immune system is very smart and can _____ to new infections.
  4. 5. True or false. we don't have good cells in our bodies
  5. 6. There are many things in the immune system that try to _______ invaders.