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The human impact on the Amazon rainforest has been grossly underestimated according to an international team of researchers. They found that selective logging and surface wildfires can result in an annual loss of 54 billion tons of carbon from the Brazilian Amazon, increasing greenhouse gas emissions.
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Answer:
I think its A. Valley Formations !
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I apolgize if i'm wrong
Isolate the cytoplasm from the external environmentRegulate the exchange of substancesCommunicate with other cellsIdentificationHope this helps :P