Answer:
Yeast
Explanation:
A microbe (microorganism) is a microscopic organism which either exist in its single-celled form or as colony of cells. Example of microbes are bacteria, archaea, algae, protozoa.
Yeast is a microbe used in the extraction of ethanol from fruit juices and sugar molasses. Saccharomyces cerevisiae is a specie of yeast which reacts with fruit juices and sugar molasses in the absence of Oxygen to produce ethanol and carbon dioxide.
