When you say you like classical music, nine out of 10 people assume you mean stuff written by dead white guys. If you claim that you love contemporary classical, they'll probably assume you're talking about something like the orchestral re-interpretation of Sir Mix-a-Lot.
Adult stem cells. These stem cells are found in small numbers in most adult tissues, such as bone marrow or fat. Compared with embryonic stem cells, adult stem cells have a more limited ability to give rise to various cells of the body. Until recently, researchers thought adult stem cells could create only similar types of cells.
Stem cells are derived from several sources in the body. They are found in mature body tissues, umbilical cord blood, fetal tissue, the placenta, and within embryos. Stem cells develop into tissues and organs in the body. In some cell types, such as skin tissue and brain tissue, they can also regenerate to aid in the replacement of damaged cells.