This series includes the difference table between Habitat and Niche Autochthonous and Allochthonous Neuston and Pleuston Extremophile and Extremozyme Habitat Niche A habitat is an ecological or and environmental area that is inhabited by a particular animal, plant or other types of organisms. A niche is a term describing the …

The Winogradsky column is a simple device for culturing a large diversity of microorganisms. Invented in the 1880s by Sergei Winogradsky, the device is a column of pond mud and water mixed with a carbon source such as newspaper (containing cellulose), blackened marshmallows or egg-shells (containing calcium carbonate), and a …

Nitrogen fixation is a process by which molecular nitrogen in the air is converted into ammonia (NH3) or related nitrogenous compounds in soil. Atmospheric nitrogen is a relatively nonreactive molecule that is metabolically useless to all but a few microorganisms. Biological nitrogen fixation converts N2 into ammonia, which is metabolized by …