Across
- 2. Bacteria or fungi
- 6. Colorless, ordorless gas
- 9. Eats only meat
- 11. What is needed to breathe
- 12. Hunts for prey
- 13. Consumes energy from another species
Down
- 1. Makes its own food
- 3. Continuous circle of energy
- 4. Eats plants and meat
- 5. Eats only plants
- 7. Main source of energy
- 8. Hunted for food
- 10. Contains all food chains