Comparisons of bacteria and viruses with standard cells. [1:43]

Paul Andersen explains how viruses reproduce using the lytic cycle. He also shows how viruses can pick up new genetic material and how retroviruses (like HIV) can enter into the lytic cycle. He also describes the lysogenic cycle and how...

Every second of your life you are under attack. Bacteria, viruses, spores and more living stuff wants to enter your body and use its resources for itself. The immune system is a powerful army of cells that fights like a T-Rex on speed...

Why not use micro-organisms (bacteria, viruses, fungus, etc.) to create sustainable energy and fuel? There are a lot of ideas currently being researched and put to use including turning cow manure into natural gas. [4:43]