Bacteria are everywhere. Trillions of these microscopic, single-celled organisms make their home on your body and inside it. Should you be alarmed? Hardly, here's the truth about bacteria.

How did 'everything is everywhere' arise out of nineteenth ... technique that established the consistent effects of different microorganisms — Robert Koch's (1843–1910) pure-culture method ...

A Bit of Background on Microbes in the Biogeosphere Life is everywhere on Earth — in soil, air, ice and water — even in the most inhospitable environments. Microorganisms have been found ...

Microorganisms are tiny. They are so small they can only be seen with a microscope. Yeast is a helpful microorganism which makes bread rise. Bacteria is a microorganism which breaks down plants ...