Environmental Systems Unit 1

1234567891011121314151617181920212223242526272829303132333435
Across
  1. 3. the distance north or south from the equator; expressed in degrees- affects the climate of a region
  2. 6. an organism that makes its own food
  3. 8. a forest community (orbiome), characterized by cool, humid weather and abundant rainfall, where tree branches are draped with mosses, tree trunks are covered with lichens,and the forest floor is covered with ferns
  4. 9. a species that is critical to the functioning of the ecosystem in which it lives because it affects the survival and abundance of many other species in its community
  5. 13. a tool to help scientists identify organisms
  6. 14. a type of vegetation that includes broad-leafed evergreen shrubs and that is located in areas with hot, dry summers and mild, wet winters
  7. 16. breaks down organic matter from dead organisms
  8. 18. is killed and eaten by another organism
  9. 20. the place where an organism usually lives
  10. 21. the average weather conditions in an area over a long period of time
  11. 23. the role that organisms play in creating a healthful environment for humans
  12. 24. a large region characterized by a specific type of climate and certain types of plant and animal communities
  13. 27. a community (or biome) that is dominated by grasses, has few trees, and is characterized by cold winters and rainfall that is intermediate between that of a forest and a desert
  14. 28. an area where fresh water from rivers mixes with salt water from the ocean
  15. 29. a forest or jungle near the equator that is characterized by large amounts of rain and little variation in temperature and that contains the greatest known diversity of organisms on Earth
  16. 31. an organism that eats other organisms to obtain their nutrients
  17. 33. a form of tourism that supports the conservation and sustainable development of ecologically unique areas
  18. 34. a treeless plain that is located in the Arctic or Antarctic and that is characterized by very low winter temperatures; short, cool summers; and vegetation that consists of grasses, lichens, and perennial herbs
  19. 35. the study of the air, water,and land surrounding an organism or a community, which ranges from a small area to Earth’s entire biosphere; it includes the study of the impact of humans on the environment
Down
  1. 1. photosynthetic organisms that forms the base of a food web
  2. 2. a plain full of grasses and scattered trees and shrubs; found in tropical and subtropical habitats and mainly in regions with a dry climate,such as East Africa
  3. 4. 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
  4. 5. characterized by very low salinity (less than 1%); includes rivers and lakes
  5. 7. an organism that CANNOT make its own food
  6. 10. a region of evergreen, coniferous forest below the arctic and subarctic tundra regions
  7. 11. in arctic regions, the permanently frozen layer of soil or subsoil
  8. 12. a forest (or biome) that is characterized by trees that shed their leaves in the fall
  9. 15. a species that is not native to a particular region
  10. 17. a species that has been identified to be in danger of extinction throughout all or a significant part of its range, and that is thus underprotection by regulations or conservation measures
  11. 19. a species that is native to a particular place and that is found only there
  12. 22. an area of land that is periodically underwater or whose soil contains a great deal of moisture
  13. 25. a region that has little or no vegetation, long periods without rain, and extreme temperatures;usually found in warm climates
  14. 26. a measure of the amount of dissolved salts in a given amount of liquid
  15. 30. hunts, kills, and eats other organisms
  16. 32. largest biome; characterized by high salinity; includes the ocean