Types of Microorganisms. 1. Bacteria. Bacteria are unicellular organisms, about few microns in size (1 micron (Âµm) = 1/1,000 of a millimetre), consisting of DNA, cytoplasm, structures needed for metabolism and reproduction, cell membrane, cell wall and capsule (Picture 1). Certain bacteria use flagella, tail-like appendages, to propel themselves.
All U.S. savings bonds have a final maturity date when they stop earning interest. Investors often lose track of this date because the U.S. Treasury Department has extended the original maturity of some bonds up to 30 years.
The current rate is 3% so 72/3 means it will take about 24 years to double or reach face value. The interest paid in the past was variable (I have those bonds). All EE savings bonds be it paper or non-paper will earn interest for 30 years. Therefore, you must cash your bonds at 30 years.