ECOSYSTEM

3. scientific study of interactions among organisms and between organisms and their environment
5. who a parasite benefits from
7. species work together
9. the area where an organism lives, including the biotic and abiotic factors that affect it
10. first species to populate an area during primary succession
11. biological components of an environment
15. step in a food chain or food web
16. relationship in which two species live closely together
17. one exploits the other and acts as a host
18. one species is not affected and the other suffers
22. group of ecosystems that have the same climate and dominant communities
23. one species consumes the other

1. one species benefits and the other is not affected
2. same species interacting
4. different species interacting
5. organism that relies on other organisms for its energy and food supply
6. self-contained habitat where living & non-living things interact
8. physical components of an environment
12. to blend in with environment. eg. chameleon
13. organism that relies on other organisms for its energy and food supply
14. network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem
19. full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions
20. to act or model like another animal
21. both species benefit from relation