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.
Series EE Savings Bonds issued between May 1995 and April 1997. The Series EE Savings Bonds issued during this two-year period are similar to the Series EE bonds issued later, however their rate is 85% (rather than 90%) of the average yield for five-year Treasury securities. All Savings Bonds in this group are guaranteed to double in value in 17 years.