Across
- 8. Plants, Bacteria, and Fungi are examples of this
- 9. Photosynthesis is what kind of reaction?
- 10. dioxide Humans emit this chemical when we breathe
Down
- 1. Responsible for the green color of plants and algae.
- 2. Another word for sugar
- 3. We need this to breathe
- 4. Plants and animals need this to stay alive
- 5. Only plant cells have this organelle
- 6. Plants need this to perform photosynthesis
- 7. Plants use this process to make food