Ecology

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Across
  1. 3. the role a population plays in an ecosystem
  2. 4. anything that has mass and takes up space
  3. 6. living part of an environment
  4. 8. nonliving part of an environment
  5. 16. the process in which organic matter and nutrients slowly build up in a body of water
  6. 17. the type of succession that occurs in areas that still have soil
  7. 19. also called an autotroph
  8. 21. the burning of materials, including wood and fossil fuels
  9. 24. occurs when individuals join a population
  10. 25. the animal being eaten by a predator
  11. 26. a close long-term relationship between different species in a community
  12. 28. a large region characterized by climate and communities of species
Down
  1. 1. an energy ______________ is a tool that can be used to trace the flow of energy through an ecosystem
  2. 2. a food _________ is the path of energy transfer from producer to consumer
  3. 5. a group of individuals of the same species that live in the same place at the same time
  4. 7. carrying ___________ is the maximum number of individuals of one species that the environment can support
  5. 9. the ability to do work
  6. 10. nitrogen fixation is when ___________ in the soil are able to convert nitrogen gas into forms that plants can use
  7. 11. the number and variety of species that are present in an area
  8. 12. the process that occurs in producers
  9. 13. relationship in which one species benefits and the other is unaffected
  10. 14. an organism that gets energy and nutrients by breaking down the remains of other organisms
  11. 15. the place where an organism lives
  12. 18. relationship in which both organisms benefit
  13. 20. also called a heterotroph
  14. 22. the type of succession that starts in an area that has no soil
  15. 23. eats both plants and animals
  16. 27. a food ________ is the feeding relationships among organisms in an ecosystem