Themes 4, 5 and 7

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Across
  1. 2. is a group of land ecosystems with similar climates and organisms.
  2. 5. is the mating of animals in zoo or wildlife preserves.
  3. 8. type of grassland that receives as much as 120 centimeters of rain each year.
  4. 11. protecting whole ecosystems.
  5. 16. species not originally from an area.
  6. 20. an organism that obtains its energy by feeding on other organisms.
  7. 21. a consumer that eats only plants
Down
  1. 1. are structures in an organism's cells that carry its hereditary information.
  2. 2. biome with coniferous trees which have leaves shapes like needles and are green all year long.
  3. 3. are found in regions close to the equator, are wet, warm times that contain an amazing variety of plants and other organisms.
  4. 4. is an area that receives less that 25 centimeters of rain per year.
  5. 6. is an area that is populated mostly by grasses and other non-woody plants.
  6. 7. is the illegal killing or removal of wildlife from their habitats.
  7. 9. biome with many deciduous tress trees which shed their leaves and grow new ones each year.
  8. 10. is a species that influences the survival of many other species in an area.
  9. 12. the number of different species in an area.
  10. 13. is an extremely cold and dry biome.
  11. 14. a consumer that ears both plants and animals.
  12. 15. an organisms that breaks down wages and dead organisms.
  13. 17. a consumer that eats only animals.
  14. 18. value all the species in an ecosystem are conned to one another. (pg 97)
  15. 19. an organisms that can make its own food.