Across
- 1. a large region characterized by a specific type of climate and certain types of plant and animal communities
- 3. an organism that eats other organisms or organic matter instead of producing its own nutrients or obtaining nutrients or obtaining nutrients or obtaining nutrients from inorganic sources
- 4. a community of organisms and their abiotic environment
- 6. the cycling of nitrogen between organisms, soil, water, and the atmosphere
- 10. the cyclic movement of phosphorus in different chemical forms from the environment to the organisms and then back to the environment
- 11. the place where an organism usually lives
- 12. the exchange of oxygen and carbon dioxide between living cells and their environment
- 13. an organism that can make organic molecules from inorganic molecules
- 15. describes the non living part of the environment, including water,rocks, light, and temperature
- 16. an organism that feeds by breaking down organic matter from dead organisms; examples include bacteria and fungi
Down
- 1. the variety of organisms in a given area, the genetic variation within a population, the variety of species in a community, or the variety of communities in an ecosystem
- 2. the replacement of one type of community by another at a single location over a period of time
- 5. a triangular diagram which shows an ecosystems loss of energy
- 7. the movement of carbon from the non living environment into living things and back
- 8. a group of various species that live in the same habitat and interact with each other
- 9. one of the steps in a food chain or food pyramid
- 14. the average weather conditions in an area over a long period of time