What is a Microbe?

Microbes are those organisms that are microscopic and include some of the eukayotes (protist, fungi, algae, and microscopic invertebrates) and all prokaryotes (bacteria and archaea). Viruses are also included in the microbes, but we are not going to cover these fascinating entities in this module. For more information on viruses, you can visit the Wikipedia […]

Bacteria

Bacteria are everywhere. Only a few micrometers in length and having a wide range of shapes, from spheres to rods to spiral, bacteria are the huddled masses of the microbial world, performing tasks that include everything from causing disease to fixing nitrogen in the soil. Humans need bacteria. In fact, there are approximately ten times […]