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.
Microorganisms are very tiny living things. They are so small that you need a microscope to see them. Microorganisms are all around us, in the air, in our bodies and in water. Some microorganisms are harmful to us, but others are helpful to us. There are three types of microorganism: viruses. bacteria. fungi. 1  Page: 2  1.3  2.icroorganisms are all around us, in the air, in our bodies and in water. Some microorganisms are harmful to us, but others are helpful to us. There are three types of microorganism: viruses. bacteria. fungi. 1  Page: 2  1.