Across
- 4. the place where cellular respiration happens
- 9. microscopic not living things that come into the body
- 10. comes from the air and needs for cellular respiration
Down
- 1. respiration the chemical reaction that makes carbon dioxide, water and energy
- 2. system the system where oxygen comes in
- 3. system of multiple systems and making energy
- 5. breaking down large molecules and breaking it down into smaller ones
- 6. is the broken down starch and used for cellular respiration
- 7. the smallest unit of life
- 8. acids broken down of protein