Across
- 2. what your heart, kidneys, and lungs are.
- 4. when an organism is composed of many cells.
- 7. there's 4 of these in the heart.
- 10. the large spreading of something.
- 11. illness or sickness.
- 13. takes nutrients, hormones, and proteins to the parts of the body that need it.
- 14. the of cells that have similar structure and function together.
- 15. what makes up all living organisms and the tissues of the body.
Down
- 1. transports blood from the heart to the rest of the bodies cells.
- 3. the body needs this to survive.
- 5. can be done alone or with another cell.
- 6. blood vessels that move blood, oxygen and nutrients to your organs.
- 8. the largest artery in the body.
- 9. collects blood that lacks oxygen and brings it back to the heart.
- 12. what protects your body from when unwanted substances enter your body.