Across
- 2. Describes the nonliving part of the environment
- 4. Cycling of nitrogen between organisms and the atmosphere
- 5. The ability of an organism to tolerate a chemical/disease-causing agent
- 6. Cyclic movement of phosphorus in various chemical forms
- 8. An organism that can make organic molecules from inorganic molecules
- 11. One of the steps in a food chain or food pyramid
- 12. Various species that live and interact with each other
- 13. Region characterized by climate and plant/animal communities
- 15. Replacement of one community by another, in one location over a period of time
- 17. The place where an organism usually lives
Down
- 1. Movement from nonliving environment into living things
- 3. Triangular diagram that an ecosystem's loss of energy
- 7. Average weather conditions in an area over a period of time
- 9. The variety of organisms in a given area
- 10. Organism that feeds by breaking down dead, organic matter
- 14. An organism that eats other organisms
- 16. Community of organisms and their abiotic environment