Across
- 2. plants
- 3. important species at the top
- 5. model that shows relationships between trophic levels
- 10. water,carbon,nitrogen,phosphorous
- 12. s-shaped carrying capacity reached
- 13. hawk
- 15. cricits
- 16. optains energy from any level of pyramid
- 18. beneficial relationship
- 19. nonliving factors
Down
- 1. one benefits other is unaffected
- 4. mouse
- 6. parasitism and overcrowding
- 7. living organism that must eat for energy
- 8. living factors
- 9. J-shaped unrestricted growth
- 11. factor that restricts numbers
- 14. one benefits other is harmed
- 17. producers other name