rgenergy and ecosystems

1. when Organisms compete when they seek the same limited resource.
3. another name for a primary producer
6. 2 or more organisms benefit from their relationship
7. an organism that consumes dead animals and plants or refuse
8. an organisms use of resources and functional role in a community
9. a niche restricted by competition
11. what is possible from a niche
13. combination eater (plants & animals)
15. Linear series of feeding relationships
16. when an organism hunts, kills, and consumes its prey
18. Shows the overlapping and interconnected food chains present in a community
19. recycles nutrients within an ecosystem by breaking down nonliving organic matter
20. occurs when at least one organism benefits from a close physical relationship

2. an organisms ability to survive and reproduce under changing environmental conditions
4. an organism that only eats plants
5. Resource __________ is when species partition resources to reduce competition
10. another name for consumers
12. an organism that only eats other animals.
14. one organism benefits while the other is unaffected
17. one organism benefits by causing harm to it's host