Body Systems

3. the 4th farthest atmospheric layer away from the surface of the earth that contains the northern lights
4. the system responsible for taking food and turning it into nutrients for the body
6. the clear liquid that all the blood cells float in
8. the blood cells that fight infections
10. the unicellular organism that lives in colonies
12. the system that disputes waste from the body
13. the blood cells that clot up when there is a wound
15. the organ that is responsible for transporting things throughout the body
17. the unicellular organism that changes its shape to move and find food
18. the blood cells that carry oxygen into the blood
19. the layer of the atmosphere that is the farthest away from the surface of the earth

1. the unicellular organism that uses cilia to move
2. the unicellular organism that has an eyespot
5. the windpipe
7. the powerhouse of the cell
9. the brain of the cell
11. the organ that mixes acids with the food to make nutrients that the body can use
12. the pipe the food travels through to get to the stomach
14. the organ that stores urine until it is ready to leave the body
16. are the 2 organs that bring in oxygen and dispute carbon dioxide out of the body