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Question

In autogenic succession


A
Community itself modifies its own environment, thus causing its own replacement by new commuity
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B
Early dominance of heterotrophs
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C
Replacement of existing communites due to external conditions
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D
Early and continued dominance of autotrophic organisms
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Solution

The correct option is A Community itself modifies its own environment, thus causing its own replacement by new commuity
Ecological successional is a gradual change that can be caused by either endogenous or exogenous factors. If the changes caused by endogenous factors (the plants themselves) are termed autogenic, whereas changes caused by exogenous factors are termed allogenic. 
Thus, the correct answer is option A.

Biology

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