Jericho p4a

12345678910
Across
  1. 1. tissue is a collection of cell
  2. 3. what system breaks down food
  3. 6. what system controls all body functions
  4. 8. is the smallest unit of life
  5. 9. what protect heart
  6. 10. what protect brain
Down
  1. 2. what system protects organ
  2. 4. what system allows exchange of gases
  3. 5. what system transports blood
  4. 7. what system works for bone