An organ is defined as âa group of tissues that perform a specific function or group of functionsâ. Since an artificial heart is not made up of tissues, itâs not an organ. Maybe we need to change the definition of âorganâ, but for right now, this is how it stands. Related Questions.
The symbol on the back of the U.S. dollar bill is the Great Seal of the United States. The face (obverse) of the Great Seal first appeared on the back of the $20 Gold Certificate, Series 1905. In 1935, both the face and back (reverse) of the seal appeared for the first time on paper money on $1 Silver Certificates.
There are a lot of myths and controversies surrounding the dollar bill. Urban legends tie the bill to the Masonic order, and some people will argue that the symbols on it reveal long-lost secrets of the country. The dollar went through many changes in size, color, and overall design. The first dollar note to be issued as a Legal Tender Note was created in 1862 and featured a portrait of Treasury Secretary Salmon P. Chase.