Related Terms. Long-term (maturity over 10 years) fixed interest rate debt security issued by a national (federal) government backed by its 'full faith and credit.' Next to treasury bills (maturity less than one year), and treasury notes (maturity one to ten years) T-bonds are the safest form of marketable investment.
bacteria [pl. of bacterium], microscopic unicellular prokaryotic organisms characterized by the lack of a membrane-bound nucleus and membrane-bound organelles. Once considered a part of the plant kingdom, bacteria were eventually placed in a separate kingdom, Monera.
Bacteria are a type of microbe, or organism so small that it can only be seen with the use of a microscope. Microbes are diverse and include organisms from each of the three domains of life: Prokaryotes (bacteria), Archaea, and Eukaryotes (including protists such as diatoms, ciliates, and dinoflagellates).Microbes also include viruses.icrobes are diverse and include organisms from each of the three domains of life: Prokaryotes (bacteria), Archaea, and Eukaryotes (including protists such as diatoms, ciliates, and dinoflagellates). Microbes also include viruses.