Across
- 3. Obtain inorganic nutrients from the abiotic environment
- 5. Formed by the compression of peat
- 8. Longer wavelength radiation emitted from the warm surface of the earth
- 10. Greenhouse gas produced by cattle and growing rice
- 11. Trophic level 1
- 14. Clearing of trees
- 15. Form as the result of the decay of marine organisms on the ocean floor
- 16. Bacteria, which use energy derived from chemical processes
- 18. Enclosed and sealed environment that allow a small part of a natural environment to be observed under controlled conditions
- 20. Level that an organism occupies in a food chain or food web
- 21. Graphical representation of the amount of energy at each trophic level of a food chain
- 22. The environment in which a species normally lives, or the location of a living organism
- 23. Total mass of a group of organisms
- 25. A group of organisms of the same species that are living in the same area at the same time
Down
- 1. Converts organic carbon found in fossil fuels into inorganic carbon dioxide
- 2. Shorter wavelength radiation from the sun
- 4. heterotroph that obtains organic nutrients from dead organisms by external digestion
- 6. Stores a very high percentage of the world's carbon
- 7. Heterotroph that obtains organic nutrients from detritus by internal digestion
- 9. One way in which organisms lose energy in a food chain
- 12. heterotroph that feeds on living organisms by ingestion
- 13. Populations of different species living together
- 17. Formed by organic matter that has not completely decomposed
- 19. Organisms that can potentially interbreed to produce fertile offspring
- 24. The energy source for most communities