Chapter 5 Crossword Puzzle By Nathan Oplinger

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Across
  1. 2. Nonnative species in an area
  2. 3. Variety of life in an area
  3. 4. Rain,Sleet,Snow,or Fog with pH below 7
  4. 5. When members of a species are held by people in zoos or other conservation facilities
  5. 6. species that have rapidly decreasing numbers of individuals
  6. 7. When the last members of a species die
  7. 9. field of biology that studies methods and implements plans to protect biodiversity
  8. 12. Separation of wilderness areas from each other
  9. 13. Different environmental conditions that occur along the boundaries of an ecosystem
  10. 14. Natural strips of land that allow the migration of organism from one wilderness area to another
  11. 15. A species in which the number of individulas falls so low that extinction is possible
Down
  1. 1. Programs that release organisms into an area where their species once lived in hopes of reestablishing naturally reproducing populations
  2. 8. Layer of the atmosphere that helps to protect living organism on earth's surface from damaging dosesof ultraviolet radiation from the sun
  3. 10. Philosophy that promotes letting people use resources in wilderness areas in ways that will not damage the ecosystem
  4. 11. Damage to a habitat by air,water,and land pollution