Chapter Review Crossword

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Across
  1. 3. element found in DNA and ATP that has its own cycle
  2. 5. rapid growth of algae due to fertilizer run off
  3. 7. photosynthesizing organisms
  4. 9. organisms that eat both meat and plants
  5. 10. when water evaporates from the leaves of a plant
  6. 12. nitrogen -fixing __________________ that take nitrogen from the air and make it available to plants
  7. 15. biome primarily found on the equator
  8. 16. type of biome with low water and low temperatures
  9. 17. organisms at the top of an energy pyramid
  10. 20. organisms that return dead material back to the bottom of an energy pyramid
  11. 23. carbon in the form of coal, oil, or natural gas
  12. 25. chemicals building up as they pass from organism to organism in a food chain
  13. 26. eat other organisms for energy
  14. 27. the cold forests in Canada, Scandinavia, and Russia fall under this category
  15. 28. the % of energy that is transferred between trophic levels
Down
  1. 1. African Savannah and the Great Plains fall under this biome category
  2. 2. organisms that only eat meat
  3. 4. rain, snow, sleet, hail
  4. 6. organisms that only eat producers
  5. 8. the % of energy that plants take from the sun
  6. 11. organisms that consume plants for energy on an energy pyramid
  7. 13. a group of organisms of the same species
  8. 14. a community of organisms + abiotic factors
  9. 18. type of biome with low water and high temperatures
  10. 19. shows a variety of feeding relationships in an ecosystem
  11. 21. the band of Earth where most of the Sun's energy falls
  12. 22. a climate that has all four seasons
  13. 24. source of most energy on earth and drive most cycles