Biology - Chapter 4

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Across
  1. 4. ability of the biosphere to maintain its balance indefinitely
  2. 5. condition in which there are not that many of that type of animal left in the world
  3. 6. use of organisms to remove or neutralize hazardous wastes in the environment
  4. 8. change in global temperatures and weather patterns over time
  5. 9. measurement of human demand on the earth's resources
  6. 11. individuals joining a population
  7. 14. type of fuel such as coal and oil
  8. 15. the stage of succession characterized by organisms first colonizing a previously barren ecosystem
  9. 18. stable, long-lived species that mark the end of succession and characterize a mature ecosystem
  10. 19. the type of cycle in which specific chemicals move through the living and nonliving parts of the biosphere
  11. 20. the type of succession that takes place in a disturbed area with soil and perhaps a few plants
  12. 21. the term relating to population that describes the number of organisms in a defined unit of area
  13. 22. process in which water vapor returns to liquid state
  14. 24. the type of factor within an ecosystem that prevents a population from growing beyond a certain size
  15. 26. the adjective used to describe a type of growth in which the population size multiplies at a constant rate at regular intervals
  16. 27. physical portion of an ecosystem preferred by an organism
  17. 29. the process in which water changes from liquid to vapor state
Down
  1. 1. how water exits a plants leaves
  2. 2. condition in which a species is susceptible to endangerment
  3. 3. maximum population size that a particular geographic area can support
  4. 7. condition when a body of water is nutrient rich, leading to an overgrowth of algae
  5. 10. the type of species that moves into a new habitat and then competes with native species for resources
  6. 12. falling products of condensation from the atmosphere
  7. 13. a type of gas that can trap heat in the earth's atmosphere
  8. 16. individuals leaving a population
  9. 17. the types of species that first colonize an area during primary succession
  10. 23. condition in which there are no long any living members of a species
  11. 25. what happens to inorganic nitrogen when it is changed into nitrogen compounds that living things can use
  12. 28. underground reservoir of water