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.
1 Series EE Bonds issue dated May 2005 and after will earn a fixed rate of interest. 2  They are an accrual-type security, which means interest is added to the bond monthly and paid when you cash in the bond. 3  Paper bonds were sold at half the face value; i.e., you paid $25 for a $50 bond.eries EE savings bonds are safe, low-risk savings products that pay interest based on current market rates for up to 30 years for bonds purchased May 1997 through April 30, 2005*. You may purchase EE Bonds via TreasuryDirect.