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 bonds earn interest until final maturity, which is 30 years from the date of issue. Find the issue date on your paper bonds, or check the date of issue and final maturity of electronic bonds in your account at TreasuryDirect. You can also use the online TreasuryDirect savings bond calculator to find the final maturity dates of paper bonds.