We all detected regarding the terms, yeast, molds and fungi. these are the eukaryotic microorganisms and with them this study is called Mycology. throughout classification, Fungi are given their own separate kingdom. Fungi are multi-faceted that are distributed entire the planet, it also can grow in a very giant kind of habitats and might survive even the foremost essential conditions- that embrace the extraordinary temperatures each cold & super-hot. alga study is termed as Phycology. These are the first producers within the aquatic system, are very essential within the growth of microorganisms within the water eco-systems. In earlier, they were true plants, however when serious studies, it's found to be pseudo-plants, therefore given a separate classification. In most cases, alga is noncellular and solely few species are cellular.