Nydae's+Science

**2.Bacteria, Algae, Protozoa, Viruses**
== 3.Bacteria are single celled micro organisms that live everywhere. Protozoa are micro organisms that get food from the surrounding environment. They can be found in a variety of habitats like rivers, ponds, rivers, oceans and soil. Algae is found in lakes and fresh water. Algae releases sugar that is used by fish to breathe. If a virus wants to live and reproduce it has to enter a living cell. ==