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 final maturity of EE bonds is 30 years from the issue date, at which time they stop paying interest. For bonds issued after June 2003, final maturity is 10 years after the original maturity. EE bonds will continue to pay the original rate of interest for the final 10 years unless the Treasury announces a change.