Across
- 1. is the main energy source for life on earth
- 4. factor that is adjusted by the experimenter
- 7. show how matter and energy move throughecosystem
- 9. all strategies and adaptations a species in its envierment
- 12. eats only animals
- 14. useful for comparing information collected by counting
- 17. study of the interactions among organisms and between organisms and their environment
- 18. organisms that are eaten
- 19. an area where an organisms lives
- 20. organisms that hunt down and eat other organisms
Down
- 1. any relationships in which two species live closely together
- 2. all the living organisms in an environment
- 3. both species benefit
- 5. amount of space occupied by an object
- 6. diagram that shows all possible feeding relationships
- 8. the process that uses observation
- 10. eats only plants
- 11. models that shows all possible feeding relationships
- 13. shows trends or how the data changes over time
- 15. the non living parts of the environment ex climate
- 16. eats both plants and animals