TED Talks
Ted: Ted Ed: How a Wound Heals Itself
Our skin is the largest organ in our bodies, with a surface area of about 20 square feet in adults. When we are cut or wounded, our skin begins to repair itself through a complex, well-coordinated process. This learning module takes us...
Arizona State University
Arizona State University School of Life Sciences: Viral Attack
There are battles that are fought each day on the planet. The invading forces are those of viruses and bacteria. Left alone they would take over and destroy every cell! It is up to some key defense systems to battle and destroy these...