Stem Cell 101 - <img src=http://biomed.brown.edu/Courses/BI108/BI108_2005_Groups/07/MultipotentStemCells.jpg> <img src=http://www.progressiveu.org/system/files/stem+cell.png> <img src=http://www.woongbee.com/stem_cell/stem-cell-02.gif>