Across
- 5. a relationship between two organisms where neither organism is harmed.
- 7. more common and caused by the reformation of environments after things like natural disasters.
- 9. when an organism is introduced somewhere where it isn’t native two and starts to take over the environment it is introduced to.
- 14. an organism that obtains its energy from the sun.
- 15. a bunch of interconnected food chains on a chart that shows how organisms get energy and what obtains energy from what.
- 18. an organism that obtains energy from a producer or another consumer.
- 19. pollution of water that comes normally from a pipe or a single discrete spot.
- 21. study of all things living and the environment they live in.
Down
- 1. pollution pollution that can be carried by runoff and man made things. Doesn’t come from anywhere specific.
- 2. something that is a living factor
- 3. caused by new land formations and things like lava flows
- 4. a relationship between two organisms where one organism is benefited and the other is harmed.
- 6. all of the air above the crust of the earth.
- 8. something that is a nonliving factor.
- 10. a relationship between two organisms where one organism is benefited and the other is neither helped or harmed.
- 11. the theory of evolution or survival of the fittest. Organisms that have the best traits for an environment will survive.
- 12. a chart of questions that can be answered in order to identify things.
- 13. the number of organisms of a specific species in a set area.
- 16. is all of biotic and abiotic factors on the entire planet combined.
- 17. all of the abiotic and biotic factors in a specific area.
- 20. the biotic factors that work together in a specific area.