Photo by: Serj Siz`kov. Protozoans are a group of eukaryotic single-celled organisms. Several species of protozoans infect humans and inhabit the body as commensals or parasites. The parasitic protozoans of major medical importance include certain species of amoebae, flagellates, and sporozoans.everal species of protozoans infect humans and inhabit the body as commensals or parasites. The parasitic protozoans of major medical importance include certain species of amoebae, flagellates, and sporozoans.
In the United States, there is no GST, VAT, national tax or the like. The only tax that you might pay is state sales tax, depending on which state you live in. In states with sales tax that covers bullion, purchases over a certain amount are normally exempt (just check with your local dealer to find out).
If you buy goods and are not charged the Ohio Sales Tax by the retailer, such as with online and out-of-state purchases, you are supposed to pay the 5.75% sales tax (less any foreign sales tax paid) for these items yourself as the Ohio Use Tax.