Biology Final review

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Across
  1. 5. What is the stable, maturest form of a community called?
  2. 7. What pattern of population dispersion have individuals clustered in groups?
  3. 11. Limiting factor that limits growth but is not associated with the number of individuals (density ___________ )
  4. 16. What gas makes up 80% of the atmosphere?
  5. 17. Plants can use nitrogen straight from the atmosphere. True of false?
  6. 18. What factors limit the growth of a population?
  7. 19. Transfer of individuals to a new area during a certain time of year.
  8. 21. What is the study of relations of organisms' with their environment?
  9. 23. What two things do the ocean do in the carbon cycle with the carbon?
  10. 27. Limiting factor that is affected by the number of individuals in an area (density _________ )
  11. 28. Organisms that have narrow niches and require specific conditions to live.
  12. 29. What kind of activities, such as mining, cutting and burning forests, and burning fossil fuels, release carbon into the atmosphere? ( _____ activities)
  13. 30. Type of succession where soil was there to begin with.
  14. 33. Animals use nitrogen in their cells for amino acids and proteins. Where do they get the nitrogen from?
  15. 36. What is the change in communities that follow a disturbance called? ( __________ succession)
  16. 37. Term for how the population is distributed. (population __________ )
  17. 38. Organisms that have a broad niche and adapts easily.
  18. 40. Release of carbon into the atmosphere from plants and animals.
  19. 41. Bringing life into the world, increasing the population.
Down
  1. 1. What cell process produces CO2 to be released into the atmosphere?
  2. 2. What is the process that converts atmospheric nitrogen into a usable form called?
  3. 3. Exit of individuals from a population.
  4. 4. What is C6H12O6?
  5. 6. What molecule does cellular respiration use?
  6. 8. Process that converts light energy to glucose
  7. 9. Term for number of individuals in a specific area. (population _______ )
  8. 10. Type of succession with no soil, only bare rock. ( _______ succession)
  9. 12. What type of growth is caused by a dramatic increase in population?
  10. 13. What is reached when the particular area is as full as it can be with organisms?
  11. 14. What pattern of population dispersion have individuals evenly spaced?
  12. 15. Slow growth and reaches carrying capacity slower. ( ________ growth)
  13. 20. In nitrogen fixation, nitrogen is converted into what?
  14. 22. What pattern of population dispersion have individuals in an unpredictable pattern?
  15. 24. Decrease in population through organisms dying off.
  16. 25. What are the two types of population growth?
  17. 26. What organism dissolve rocks into soil for nutrients?
  18. 31. What bacteria fixes nitrogen by forming a mutualistic relationship with plants?
  19. 32. What organism helps plants create nutrients in the soil?
  20. 34. First species to come about, usually lichens, during primary succession.
  21. 35. Term that describes the needed aspects of a habitat in order for an organism to survive.
  22. 39. How does nitrogen go back into the soil?