Ecosystem

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Across
  1. 3. all the frogs living in a pond
  2. 5. an area that gets very little rain
  3. 6. forest a forest of trees that lose and regrow their leaves each year
  4. 9. the middle level of a tropical rain forest
  5. 10. the earth's largest ecosystem
  6. 11. water rivers and lakes contain
  7. 13. the edge of a pond for cattails
  8. 15. hundred the average rainfall in deciduous forests each year
  9. 17. forest a forest with lots of rain but cool temperatures
  10. 18. all the populations in an ecosystem form a
Down
  1. 1. a collection of living and nonliving things
  2. 2. forest a forest of trees with seeds
  3. 4. an area where the main plant is trees
  4. 7. everything around a plant or animal
  5. 8. a large, flat area where tall grasses grow
  6. 12. water oceans and seas contain
  7. 14. rain forest a forest in a hot, rainy place
  8. 16. a plant NOT found in a deciduous forest