Concept:Fungi Kindom:The kingdom fungi constitute a unique kingdom of heterotrophic organisms.They show a great diversity in morphology and habitat.There are about 100000 species in this kingdom.Explanation:Yeast belongs to the kingdom of fungi. It is a eukaryotic unicellular fungus which is used in bread making. Saccharomyces cerevisiae is commonly known as baker's yeast.Baker's yeast comes in a variety of forms, including active dry, fresh (or cake), liquid, and instant.Saccharomyces cerevisiae, a type of budding yeast that can ferment sugar into carbon dioxide and alcohol, is widely used in the bread making and brewing industries.Additional InformationProtista:Kingdom Protista includes all single-celled eukaryotes but the boundaries of this kingdom are not well-defined.They are mostly aquatic organisms, some protists also live in the bodies of animals as parasites.Monera:Kingdom Monera includes all prokaryotes such as bacteria, mycoplasma, Actinomycetes and cyanobacteria.They are simplest and most primitive, unicellular prokaryotes.Protozoa:Kingdom Protozoa are free-living or parasitic single-celled eukaryotes.They feed on organic matter such as other microorganisms or organic tissues and debris.