Ecology Terms

3. The conversion of organic nitrogen from dead matter back into ammonia
5. Shows the total dry mass of living tissue in a level
8. Non-living physical and chemical elements like sunlight and pH
9. Status of a species at high risk of becoming extinct
14. An organism that primarily consumes the flesh of other animals
17. An autotrophic organism capable of generating its own food
18. The introduction of harmful or poisonous substances into the biosphere
25. The absorption of nitrates by plants to form organic proteins
26. The reduction of nitrates into gaseous nitrogen by soil bacteria
27. The process of converting atmospheric nitrogen into ammonia
28. A linear sequence showing the one-way transfer of energy between organisms
29. A group of individuals of the same species inhabiting a given area

1. The variety and variability of life forms within a particular habitat
2. An organism that derives its energy by preying upon other life forms
4. Shows the total count of organisms at each level
6. A primary consumer that feeds exclusively on plant matter
7. A biological community of interacting organisms and their physical environment
10. A complex system of interlocking and interdependent feeding relationships
11. The sustainable management and protection of natural resources
12. The specific natural home or environment of an organism
13. The living components of an ecosystem that influence an organism
15. An organism such as a fungus or bacterium that recycles organic matter
16. Different populations living and interacting together
19. The hierarchical position an organism occupies in a food chain
20. Shows the total calories available at each successive stage
21. A generalist feeder that consumes both plant and animal tissue
22. The biological oxidation of ammonia into nitrates
23. The unidirectional movement of calories through various levels
24. The large-scale removal of trees resulting in habitat loss