Biosphere

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Across
  1. 4. Each step in a food chain or food web
  2. 10. The cultivation or farming of seafood under controlled conditions
  3. 11. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
  4. 14. capable of being readily decomposed into harmless substances by microorganisms
  5. 16. The loss of some or all of a soil's ability to support plant growthBiosphere Consists of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere.
  6. 17. The loss of some or all of a soil's ability to support plant growth
  7. 19. factors living parts of an ecosystem
  8. 22. An ecological succession that occurs after a major disturbance, such as a wildfire, flood, or storm. The soil is usually intact.
  9. 23. Damage done to a habitat that results in the loss of resources that organisms need to survive, like food, water, and shelter
  10. 25. An organism that obtains energy by feeding on other organisms
  11. 26. nonliving parts of an ecosystem
  12. 28. the variety of life, or number of species, present within an ecosystem
Down
  1. 1. An ecological succession that begins in an area where no biotic community previously existed, usually no soil present.
  2. 2. a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
  3. 3. a natural resource that is used up faster than it can be replaced by natural processes
  4. 5. the impact of a person or community on the environment, expressed as the amount of land required to sustain their use of natural resources.
  5. 6. the system of growing a different crop in a field each year to preserve the fertility of the soil
  6. 7. Breakup of a habitat into smaller pieces, usually as a result of human activities.
  7. 8. An increased concentration of a chemical within an organism over time
  8. 9. An organism that breaks down wastes and dead organisms; AKA detritivores
  9. 12. A biological community of interacting organisms and their physical environment.
  10. 13. the rate at which an ecosystem returns to its original state after a disturbance
  11. 15. A biological community of interacting organisms and their physical environment.
  12. 18. An organism that makes its own food
  13. 20. A natural resource that can be replaced at the same rate at which the resource is consumed
  14. 21. A species, often introduced by humans, that takes hold outside its native range.
  15. 24. The increase in chemical concentration in animal tissues as the chemical moves up the food chain
  16. 27. Consists of all life on Earth Consists of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere.Consists of all life on Earth Consists of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere.Ecology- the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.Ecology- the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.