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which era characterized by the extinction of reptiles and the appearance of mammals is considered significant in geological history
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Actinobacteria sp. are fermenting organisms (which do you use oxygen to breathe) referred to as chemoorganohetereotrophs this means they break down organic material and convert it to inorganic material. which part of the carbon cycle does this describe
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which era characterized by the extinction of reptiles and the appearance of mammals is considered si...
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