Lessons 41-50 Vocab

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Across
  1. 1. the home of an organism
  2. 3. makes food
  3. 5. harmful moisture that falls to Earth after being mixed with wastes from burned fossil fuels
  4. 11. small sealed container for small land animals/plants
  5. 12. one type of organism
  6. 14. a swampy coniferous forest of high northern latitudes or Siberia and North
  7. 16. ecosystem has too many of one kind of living things
  8. 17. a vast, flat treeless Arctic region, that's permanently frozen
  9. 18. a web shows how food chains are related within an ecosystem
Down
  1. 2. very hot and humid
  2. 4. long period of time with no rain or precipitation
  3. 6. cutting down of large areas of trees for agriculture, ranching, etc.
  4. 7. the living part of an ecosystem
  5. 8. harmful substances added to water, air or land
  6. 9. a prehistoric mammal
  7. 10. use the food or eat other organisms
  8. 13. a system that includes both living and nonliving things
  9. 15. break down wastes and remains of other organisms