17. Limiting Factor A. stable, mature community 18. Climax Community B. natural changes and species replacement over time
19. Primary Succession(2) C. Takes place on land where life has never existed before

20. Secondary Succession(2) D. Conditions are ideal for the organism to survive 21. Pioneer Species E. restricts existence, numbers, reproduction, or distribution of organisms

22. Tolerance F. The first species to inhabit the area

23. Succession G. Occurs on land where life previously existed

24. Zone of intolerance H. conditions will not allow species to survive here

25. Optimum Range(2) I. Ability to withstand changes in environment

J. Type of succession after a fire

K. most of the population lives within this range

L. succession that takes the longest time to complete