Biomes and Communities

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Across
  1. 5. the first species to take hold in an area
  2. 7. orderly natural changes and species replacements that take place in communities of an ecosystem
  3. 8. layer of permanently frozen ground
  4. 9. Belt of coniferous trees worldwide
  5. 11. ponds and lakes, streams and rivers, and wetlands.
  6. 12. The layers of the ground
  7. 14. All of earth’s water
  8. 15. rainforest that have moderate temperatures and clear seasonal changes
  9. 19. the number of people, other living organisms, or crops that a region can support without environmental decline
  10. 23. a large group of ecosystems that share the same type of climax community
  11. 24. shallow enough for sunlight
  12. 25. The ability an organism has to withstand changes in biotic and abiotic changes in the environment
  13. 27. grass roots that survive throughout the winter then enlarge and form a thick layer on the ground
Down
  1. 1. Dominated by broad leaved hardwood trees that lose their foliage
  2. 2. the oceans, coral reefs, and estuaries
  3. 3. community a stable mature community that undergoes little to no change
  4. 4. excessive amounts of rain over 100 in rain
  5. 6. any biotic factor or a biotic factor that limits the number of organisms in an environment
  6. 10. succession that takes place after an existing community is severely disrupted in some way
  7. 13. Soil is dry - less than 25 cm rain per year
  8. 16. all earth's living things
  9. 17. succession that takes place on land where there is no living organisms
  10. 18. rainforest with Hot climate (77* lowest temp)
  11. 20. Large communities covered with rich soil, grasses and plants
  12. 21. all earth's air
  13. 22. A treeless land with long summer days and short periods of winter sunlight
  14. 26. coastal body of water, surrounded by land in which freshwater and saltwater mix