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