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 biggest difference between 1928 two dollar bills and 1953 and 1963 two dollar bills is the position of the red seal. On 1928s the red seal is on the left hand side of the bill. On 1953 and 1963 two dollar bills the red seal is on the right side of the bill.