Across
- 5. causes breathing difficulties
- 6. healthier complex sugars
- 9. helps stop bleeding
- 10. certain food people eat
- 11. pigment that make blood red
- 13. final structure of membrane proteins
- 15. most important gas for animals
Down
- 1. Fights diseases
- 2. responsible for breathing
- 3. process that creates energy
- 4. is in 45% of blood
- 7. common sugar molecules in bread
- 8. helps with gas exchange
- 12. fluid that transports oxygen
- 14. ________ used to repair bones/muscles