Across
- 3. All the organisms that live in a place, together with their physical environment
- 4. Includes all the rocks, continents, and the ocean floor
- 5. Without it, Earth would be about 30 degrees Celsius cooler than it is today
- 7. Dark area below the photic zone in which photosynthesis cannot occur
- 8. The sunlit region near the surface in which photosynthesis can occur
- 9. Scientific study of interactions among organisms, populations, and communities and their interactions with the environment
- 10. 66.5-90 N/S Latitude
- 11. layer of permanently frozen subsoil
- 13. Ecologists classify the homes of organisms into roughly ten different regional climate communities called
- 15. is a wetland formed where a river meets the sea
- 17. consists of all Earth's fresh and salt water
- 18. Material formed from decaying leaves and other organic matter
- 19. 0-23.5 N/S Latitude
- 21. defined by patterns and averages of temperature, precipitation, clouds, and wind over many years
- 22. a group of similar species that can breed and produce offspring
Down
- 1. any non-living part of the environment
- 2. all the gasses that surround earth
- 4. Carbon dioxide, Methane, and Water Vapor
- 6. any living part of the environment
- 10. group of individuals that belong to the same species and live in the same area
- 12. 23.5-66.5 N/S Latitude
- 14. Short term changes in temperature and precipitation
- 16. includes all parts of Earth in which life exists
- 20. Assemblage of different populations that live together in a defined area