Across
- 4. Levels each level represents a different organisms
- 5. energy is transferred from living animal to living animal based on the
- 6. water leaving the earth and into the sky
- 9. a type of symbiotic relationship where all species involved benefit from
- 12. Nitrogen nitrogen gas takes up 78% of the atmosphere
- 13. Cycle circulation of nitrogen
- 14. water in the clouds returning to earth
- 19. the act or process of trying to get or win something
- 20. a close, prolonged association between two or more different
- 21. Respiration breaking down molecules and makes atp
- 22. plants absorb nitrogen
- 24. Fuels oil coal gasoline all contain large amounts of carbon
- 25. a relationship between individuals of two species in which one species
- 27. Conversion to be useful to living organisms
Down
- 1. water vapor cools and becomes liquid
- 2. Web consists of all the food chains in a single ecosystem
- 3. the process by which a plant turns energy from the sun into carbon
- 5. Succession when a new patch of land is created or exposed for the first time
- 7. The interplay between pigeons and humans is an example of neutralism
- 8. relationship between two species of plants or animals in which one
- 10. Cycle movement of carbon from the atmosphere into an organizem
- 11. wastefulness of an organism's
- 15. Succession the process by which the mix of species and habitat in an area changes
- 16. dead organisms slowly decomposing
- 17. Chain the passing of materials to producer to consumer
- 18. other soil bacteria convert to nitrogen
- 23. Cycle movement of oxygen from the atmosphere into living organizem
- 26. Pyramids producer herbivore carnivore