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The first thing a microbiologist observed in a labotatory culture of microbes is there colony, and by just observing the morphology of colonies any microbe one can distinguish or identify the type of organism not exactly but up to some extent, as the morphology of bacterial and fungal colonies are very different and also the different species of bacteria show different colour and shape the colony can be rough or smooth or can be sticky. Also the time of growth can be observed and the type of nutrition tell a microbiologist much about the microbes.

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