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.
In the center you have a carpenter's square, a tool used for an even cut. Underneath is the Key to the United States Treasury. That's all pretty easy to figure out, but what is on the back of that dollar bill is something we should all know. If you turn the bill over, you will see two circles.ake out a one dollar bill, and look at it. The one dollar bill you're looking at first came off the presses in 1957 in its present design. This so-called paper money is in fact a cotton and linen blend, with red and blue minute silk fibers running through it. It is actually material.