Across
- 3. broken protein molecules make ____
- 5. the system that lets blood flow to your heart
- 7. this molecule comes from broken-down-starch
- 9. parts of the body that help it function
Down
- 1. Multiple atoms are combined to create ______
- 2. the system that breaks down food
- 4. the result of glucose and oxygen combining is ___
- 6. the system that lets you breathe
- 8. you breathe in this molecule called____