Ecosystem

3. where an organism eats and kills another organism
5. all food chains in a single ecosystem
6. when an organism becomes better able to live in its environment
10. a geographic area where plants, animals and organisms work together to form a bubble of life
12. must eat other plants or animals for energy
14. a model that shows the flow of energy through an ecosystem
17. anything that constrains a populations size or stops it from growing
18. the fight for sources in high demand
20. when plants sue sunlight water and carbon dioxide to make sugars
21. an association between two or more different biological species
22. a variety of ecosystems
23. a long-term biological interaction between species, neither are harmed

1. the careful maintenance and upkeep of a natural resource to prevent it from disappearing
2. a group of species living together and interacting through ecological processes
3. members of the same species
4. how energy and nutrience moves through the animal kingdom
7. the production of carbon dioxide
8. the community of plants and animals that occur naturally in an area, often sharing common characteristics specific to that area
9. organism that breaks down dead plants or animals
11. a relationship between the two living species in which one organism is benefitted at the expense of the other.
13. a relationship where both species are mutually benifited
15. the area and resources used by a particular species
16. can produce food for itself using the power of the sun or chemicals found around them
18. the average of these events over years and longer time periods
19. the position of an organism in a food chain