Materials. 1  DriMark Counterfeit Detector Pen with adhesive holder! (It was cheaper than purchasing 3 to a package.) Patent number 5,063,163 is proudly printed on the bottom of the package. 2  Dollar bills. I used four singles instead of twenties, fifties or hundreds for two reasons. 3  Starch.
All living beings are made up of cells. Some of them are made up of only one cell and others have many cells. The average adult human body has around 37.2 trillion cells. WOW, that's a lot of cells. So many, in fact, that it's hard to picture.
The cell is the basic living unit of the human bodyâindeed, of all organisms. The human body consists of trillions of cells, each capable of growth, metabolism, response to stimuli, and, with some exceptions, reproduction. Although there are some 200 different types of cells in the body, these can be grouped into four basic classes.