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Bio Fertilization (Yeast) 1
Yeasts are single-celled microbes that can exist in an oxygenated medium, that is, they breathe oxygen, and some of them can live without air and do not have to be a fungus.
They are eukaryotic organisms belonging to fungi of the genus Ascosporidae, often ascomycetes, and may denote the developmental stages of other fungi called yeast, which reproduce by budding.
In terms of size, yeasts are generally larger than bacteria.