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