Biology Vocab Crossword

1234567891011121314151617181920212223242526272829303132
Across
  1. 6. series of changes in the species in a community, often following a disturbance
  2. 8. ability of an organism to survive and reproduce under circumstances that differ from their optimal conditions
  3. 9. permanently dark layer of the oceans below the photic zone
  4. 12. states that no two species can occupy the same niche in the same habitat at the same time
  5. 17. A relationship between two organisms of different species where one benefits and the other is harmed
  6. 19. term used to refer to trees that produce seed-bearing cones and have thin leaves shaped like needles
  7. 21. A habitat in which the fresh water of a river meets the salt water of the ocean.
  8. 22. Natural situation in which heat is retained in Earth's atmosphere by carbon dioxide, methane, water vapor, and other gases
  9. 23. An interaction in which one organism captures and feeds on another organism
  10. 25. permanently frozen layer of soil beneath the surface of the ground
  11. 30. Dense covering formed by the leafy tops of tall rain forest trees
  12. 31. A species that influences the survival of many other species in an ecosystem
  13. 32. Biome in which the winters are cold but summers are mild enough to allow the ground to thaw
Down
  1. 1. any necessity of life, such as water, nutrients, light, food, or space
  2. 2. Trees and shrubs that shed their leaves at the end of the growing season
  3. 3. First species to populate an area during primary succession
  4. 4. Succession following a disturbance that destroys a community without destroying the soil
  5. 5. interaction in which ones species benefits, the other is not affected
  6. 7. organisms that live on, or in rocks and sediments on the bottoms of lakes, streams, and oceans
  7. 10. Day-to-day conditions of Earth's atmosphere
  8. 11. environmental conditions that vary over small distances
  9. 13. Tiny organisms that float in the water
  10. 14. Portion of the marine biome that is shallow enough for sunlight to penetrate.
  11. 15. A close relationship between two species that benefits at least one of the species.
  12. 16. Place where an organism lives
  13. 18. Describes not only what an organism does, but also how it interacts with biotic and abiotic factors in the environment
  14. 20. A land area that is covered with a shallow layer of water during some or all of the year
  15. 24. interaction in which one animal (the herbivore) feeds on producers (such as plants)
  16. 25. An ecological succession that begins in an area where no biotic community previously existed
  17. 26. A layer of shorter plants that grow in the shade of a forest canopy.
  18. 27. A relationship between two species in which both species benefit
  19. 28. The average weather conditions in an area over a long period of time
  20. 29. material formed from decaying leaves and other organic matter