What are stem cells? Where do stem cells come from? Why are they important?

Stem cells are cells of the body that can divide and become differentiated. stem cells specialise and take specific functions when an organism grows

mature tissues such as muscle, blood, tissue, bone, nerves, liver all have different types of cells.

they come from three to five day old embryo cells.

they represent potential in the regeneration and repair of damaged tissue. some therapies actually currently use stem cells for this reason