What is a microorganism?

4th May, 2012 - Posted by Sammie Gann - No Comments

Introduction If you can only see a living thing with a microscope, that means it is a microorganism. These are found everywhere. Some of them, like yeast are helpful. And some of them are harmful and disease causing, like bacteria. It is important to know how to avoid spreading the bad ones! What are microorganisms? » Read More