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.
Updated January 27, 2016. Have you ever wondered why different Series EE savings bonds mature at different dates? For example, the EE bonds issued in 1981 and 1982 took only eight years to reach full face value, yet the same EE bonds issued in 2003 took twenty years to reach face value.