Chapter 5 Biodiversity and Conservation

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Across
  1. 4. found only in one specific geographic area
  2. 5. gradual process of species becoming extinct
  3. 9. any material or organism in the biosphere, including water, soil, fuel, and plants and animals
  4. 11. technique using living organisms to detoxify a polluted area
  5. 12. use of resources at a rate that they can be replaced or recycled
  6. 14. any different environmental condition occurring along an ecosystem's boundaries
  7. 15. variety of ecosystems in the biosphere
  8. 16. the disappearance of a species when the last of its members dies
  9. 17. overuse of a species with economic value - a factor in species extinction
  10. 18. in a biological community, the number and abundance of different species
  11. 19. any natural resource available in limited amounts or replaces extremely slowly by natural processes
  12. 20. the number of different species living in a specific area
Down
  1. 1. technique of adding essential materials to a degraded ecosystem
  2. 2. increasing concentration of toxic substances, such as DDT, in organisms trophic levels increase in food chains or food webs
  3. 3. water pollution from nitrogen-rich and phosphorus-rich substances flowing into waterways, causing algal overgrowth
  4. 6. habitat loss from separation of an ecosystem into small pieces of land
  5. 7. variety of inheritable characteristics or genes in an interbreeding population
  6. 8. any resource replaced by natural processes more quickly than it is consumed
  7. 10. a large-scale dying out of a large percentage of all living organisms in an area within a short time
  8. 13. nonnative species deliberately or accidentally introduced into a new habitat