Across
- 5. plant-eating animal
- 9. the main product of photosynthesis
- 11. how plants make their food
- 12. meat-eating animal
- 13. usable energy
- 14. where energy originates
Down
- 1. organism that does photosynthesis
- 2. green pigment of the plant
- 3. where cellular respiration takes place
- 4. something that speeds up chemical reactions
- 6. all the food chains in a single ecosystem
- 7. can be aerobic or anaerobic
- 8. where photosynthesis occurs
- 10. waste product of respiration
- 12. waste product of respiration