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