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 $1 Silver Certificates.
The United States dollar, or the American dollar, is the official currency, or money, of the United States of America. When writing, the symbol for the American dollar is the dollar sign ($). Dollars can also be known as USD (U.S. Dollar). Front of a US dollar bill. The American one dollar bill has a picture of George Washington. There are paper bills that are worth 1, 2, 5, 10, 20, 50, and 100 dollars. One of the unique things about the U.S dollar system is that all of the notes are the same size. This is the only country in the world to have this type of system. In others the size of the note goes up as the value does.