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.
These bonds have an original maturity period of 18 years. Once they've been held for five years, they become eligible for market-based rates. Bonds Bought May 1995 Through April 1997. Series EE Savings Bonds issued May 1, 1995 through April 30, 1997, earn interest based on market yields for Treasury securities. Each May 1 and November 1, Treasury announces two Savings Bond rates. The Short-Term Rate is applied to bonds for the first five years they are held.