Article reviewed by Phoebe Lostroh, PhD from Colorado College. Stay up to date on the latest science with Brush Up Summaries. Louis Pasteur prepared the first liquid bacterial culture medium in 1860, ...

Micro-organisms constitute a very antique group of living organisms which appeared on the Earth’s surface almost 3000 million years ago. The questions arising from the study of the origin and ...

We often hear about bacteria, but what exactly are they? A bacterium is a living organism that consists of a single cell (unicellular). It has ...