All these progeny cells have defined positions in the different organs. To maintain its function and continue to produce new stem cells, the stem cell can divide into and produce more stem cells ...

This then divides by mitosis to form two identical cells ... For example bone marrow stem cells only form different types of blood cells. Plants have stem cells too. They're found at the meristems ...

All fuel cells have the same basic configuration, an electrolyte and two electrodes, but there are different types of fuel cells, based mainly on what kind of electrolyte they use. Many ...