Across
- 4. organelle where photosynthesis happens
- 9. What humans breathe out
- 10. the process in which plants and animals make energy
- 11. the process in which plants use sunlight to make sugar
- 12. the green pigment that comes from the chloroplast
Down
- 1. little holes in leaves that take in carbon dioxide
- 2. a type of sugar
- 3. a living organism that breathes in oxygen
- 5. a living organism that makes its own food
- 6. energy from the sun
- 7. organelle where cellular respiration occurs
- 8. What humans breathe in