Chapter 7 Key Terms

4. Two or more species occupying the same area
6. The relationship between two species that both benefit from each other
7. A geographic area where different organisms, along with the abiotic factors work together and depend on each other
11. The relationship between two species, in which one benefits while the other is unaffected
13. An organism being hunted by a predator
14. The gas surrounding earth
16. The water on earth, including the water in the air
17. The natural environment of an organism

1. An organism that lives of another organism of a different species. It benefits while the host is harmed
2. An organism that harbors and provides for a parasite
3. Two largely different organisms living together
4. The relationship between organisms for food, shelter, water, etc.
5. The relationship between two species in which one is destroyed or harmed while the other is unaffected
8. The solid earth
9. One benefits and the other is killed
10. The ecosystem of the entire earth, including all organisms
12. A habitat supplying factors necessary for the survival of an organism
15. An organism that lives by preying off others