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.
The most notable and recognizable element of the modern one dollar bill is the portrait the first president, George Washington, painted by Gilbert Stuart. The one dollar bill issued in 1929 (under Series of 1928) was a silver certificate. The treasury seal and serial numbers on it were dark blue. The reverse had a large ornate ONE superimposed by ONE DOLLAR.