Multiple Choice
During old- field succession, the graph clearly shows that the number of species increases with time. During what period of time is this rate of increase the greatest?
A) 60- 100 years
B) 40- 60 years
C) 20- 40 years
D) 0- 20 years
E) cannot be determined from this data
Correct Answer:

Verified
Correct Answer:
Verified
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