As decomposers, bacteria and fungi play an important role in an ecosystem. They break down dead or waste organic matter and release inorganic molecules. Green plants take these nutrients which are in turn consumed by animals, and the products of these plants and animals are again broken down by decomposers.
Yeast is a single-celled fungus that lives naturally on the surface of the fruit. It is economically important in bread-making and brewing beer and also in the making of yoghurt.
Most microorganisms are unicellular; if they are multicellular, they lack highly differentiated tissues.
There are fundamentally two different types of cells, One being Prokaryotic and the other Eukaryotic
Microbes especially prokaryotes are numerous in number in comparison to eukaryotes.
The lineage of life on Earth originated from these microbes:
1. Bacteria
2. Archaea
3. Eucarya
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