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.
EE Savings Bonds purchased today increase in value every month rather than every six month. Interest is compounded semiannually. Series EE Savings Bonds purchased on or after May 1, 2005, earn a fixed rate of return which is set at their purchase. Interest is posted on the 1st of the month. See the chart above in the Maturity Rules section for your bond's maturity information. MAKE SURE YOU KNOW WHEN YOUR BONDS STOP EARNING INTEREST!