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.
Savings bonds include series EE and I bonds. There were HH bonds, but they are no longer issued. If you hold an HH bond, you can get your purchase price back through direct deposit. The EE bonds and I bonds mature in 20 years. You can cash the EE and I series bonds in after 1 year, but you will have to pay a penalty. After 5 years of purchase, you can cash in the bonds without a penalty. The penalty you pay, if you cash in the bonds before the 5 year limit, is the last 3 months of interest that your bond earned. Both EE and I bonds continue to earn interest for another 10 years after the 20 year maturity date.