I am a phototrophic bacterium. I release oxygen into the atmosphere as I carry out my metabolism. I can live as a single cell or in colonies. Some of my species can even fix nitrogen. Who am I

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