Environmental Science Exam Review

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Across
  1. 3. Mass/Volume
  2. 8. In an experiment, the group that is not exposed to the treatment; comparison group
  3. 11. A group of individuals that belong to the same species and live in the same area
  4. 12. Two or more organisms fighting for a common resource
  5. 14. A cell characterized by the presence of a nucleus and other membrane-bound organelles. Eukaryotes can be unicellular (protists) or multicellular (fungi, plants and animals).
  6. 17. Biom in which the winters are cold but summers are mild enough to allow the ground to thaw; has coniferous trees, moose, bears
  7. 18. The theory by Darwin that the organisms that survive are the organisms that are best adapted to their environment
  8. 20. Sedimentary chemical and organic rock formed from the remains of marine organisms
  9. 23. An animal with a backbone
  10. 24. Living factors in an environment
  11. 26. The source of all energy in an ecosystem
  12. 27. All the different populations that live together in an area
  13. 28. Sedimentary rock formed from particles of clay; can contain fossils
Down
  1. 1. English natural scientist who formulated a theory of evolution by natural selection (1809-1882)
  2. 2. A trait that helps an organism survive and reproduce
  3. 4. An organism that can make its own food.
  4. 5. Comes from burning fossil fuels; can cause acid rain
  5. 6. An organism whose cells do not have an enclosed nucleus, such as bacteria.
  6. 7. Planting young trees or seeds on lands where trees have been cut or destroyed
  7. 9. Causes weather in the atmosphere, plate tectonics in the mantle, and currents in the ocean
  8. 10. A biological community of interacting organisms and their physical environment.
  9. 13. Warm, tropical biome with monkeys and large cats; receives over 80 inches of rain a year
  10. 15. Frozen precipitation that forms in layers in a cumulonimbus cloud
  11. 16. A chemical used to kill insects
  12. 19. Solid nonrenewable fossil fuel
  13. 21. A group of similar organisms that can breed and produce fertile offspring.
  14. 22. The shaking that results from the movement of rock beneath Earth's surface.
  15. 25. Non-living factors in an environment