Across
- 5. nutrients diffuse or are moved into the blood
- 9. the main muscle of the respiratory system.
- 10. the taking in of nutrients (food)
- 12. Stores substances until needed and Site for chemical reactions
Down
- 1. the removal of solid waste from the digestive system out of the body
- 2. is the diffusion of water through a membrane
- 3. each cell is made up of smaller components
- 4. The smallest blood vessels & surround the alveoli.
- 6. Builds proteins essential for cell growth and reproduction
- 7. smaller and smaller tubes carrying air deep into the lungs.
- 8. Helps in cell division an ONLY found IN ANIMAL
- 11. controls all cell activities