ECOLOGY

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Across
  1. 1. two species arise from one.
  2. 4. ability of a living system to be restored through secondary succession.
  3. 5. Restrict coastal locations for fish farmsControl pollution more strictly
  4. 8. are new discoveries and new ideas that can overthrow a well-accepted scientific theory or law.
  5. 10. excessive nutrients into the lake.
  6. 13. the arrangement of its atoms or ions within molecules does not change.
  7. 14. a colorless and suffocating gas, also comes from volcanoes.
  8. 16. average number of children born to women in a population during reproductive years.
  9. 17. processs which specialized bacteria can convert simple inorganic compounds.
  10. 18. an extremely hot fire that leaps from treetop to treetop or whole burning trees
  11. 20. consists of the parts of the earth’s air, water, and soil where life is found.
  12. 21. an increase in a nation’s output of goods and services.
  13. 22. effect natural warming effect ofthe troposphere.
  14. 24. mostly in the interiors of continents in areas too moist for deserts and too dry for forests.
Down
  1. 2. an interaction that benefits one species but has little effect on the other.
  2. 3. occurs when people are unable to meet their basic needs.
  3. 6. distribution of males and females among age groups in a population.
  4. 7. The extinction of many species in a relatively short period of geologic time
  5. 9. the dimly lit middle zone, does not contain photosynthesizing producers.
  6. 11. country’s rarest and most imperiled species are concentrated in a few areas
  7. 12. Functions of nature such as purification of air and water, which support life and human economies.
  8. 15. is the temporary or permanent removal of large expanses of forest
  9. 19. evolution process whereby earth’s life changes over time through changes in the genes of populations.
  10. 23. the area of ocean needed to sustain the consumption of an average person or the world.
  11. 25. occurs when two or more processes interact, the combined effect is greater than before.