Across
- 2. one benefits, one has no effect
- 7. amount of
- 8. plants only
- 10. one benefits, the other doesn't
- 11. thriving
- 13. amount creatures in an area
- 14. life form
- 16. plants and meat
- 18. cant make own food
- 19. collection of food chains
- 20. first
Down
- 1. produces own food energy
- 3. both benefit
- 4. eats decay
- 5. different types of creatures
- 6. line of hierarchy in an enviornment
- 9. area that is inhabited
- 12. meat only
- 15. level of an organism
- 17. second