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 issued May 2005 and after earn a fixed rate of interest. 2  EE bonds purchased between May 1997 and April 30, 2005, earn a variable rate of interest. 3  Interest is added to an EE bond monthly and paid when you cash the bond. 4  Paper bonds were sold at half the face value; i.e., you paid $25 for a $50 bond.ee the press release. Series EE savings bonds are low-risk savings products that pay interest for up to 30 years. You may purchase EE bonds in electronic form via TreasuryDirect. We no longer issue EE bonds in paper form.