Across
- 4. cycle where plants contribute through transpiration
- 5. type of growth model represented by carrying capacity
- 10. the max # of individuals an environment can support
- 12. the variety of life in an area determined by the # of species
- 14. both organisms benefit
- 15. type of succession that does not have any topsoil
- 16. study of relationship among organisms and their environment
- 17. large group of ecosystems that share same climate
- 18. role or position of an organism in its environment
- 19. living factors in an organism’s environment
- 20. organisms that obtain energy from the sun
- 21. a thin layer around Earth that supports life
Down
- 1. organism that must eat to obtain energy
- 2. one organism benefits at the others expense
- 3. a single species that share the same location
- 6. a biological community and all of the abiotic factors
- 7. and area why an organism lives
- 8. each step in a food chain or food web
- 9. any factor that restricts the number of an organism
- 11. cycle that includes burning of fossil fuels
- 13. model representing many interconnected food chains
- 22. species that is changing conditions on earth by its activities