Across
- 2. describes any living factor in an organism's environment
- 5. anything that takes up space and has mass
- 6. describes any non-living factor in an organism's environment
- 9. group of organisms of the same species
- 10. a chemical substance that an organism needs to perform life processes
- 12. act of an organism feeding on another organism
- 13. biological community and all of the non-living factors within it
- 14. a heterotroph that consumes only plants
- 15. the total mass of living matter at each trophic level
Down
- 1. an organism that decomposes dead organic materials in an ecosystem
- 2. a large group of ecosystems that share the same climate
- 3. the thin layer of Earth and its atmosphere that supports life
- 4. Group of interacting populations
- 7. a heterotroph that preys on other heterotrophs
- 8. role of an organism in its environment
- 11. the physical area in which an organism lives