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A biologists compares how different ecosystems undergo succession. She divides the series of events that
happen during primary and secondary succession into three different stages. Which feature might be used to
distinguish secondary succession from primary succession?
A)The lack of pioneer species in the second stage
B)The presence of pioneer species in the final stage
C)The presence of trees and large plants in the final stage
D)The presence of soil and organic matter in the first stage.
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A biologists compares how different ecosystems undergo succession. She divides the series of events...
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