A tariff is a tax on an imported good. Therefore for each unit of a good that is imported into a country the tariff increases the price of that good by however much the tariff is.Tariffs are usually implemented when the world price of a good is lower than the domestic price of a good.nswer Tariffs are a tax on importation, when you import a product over to a different country you have to pay a Tariff which is also known as a Tax when it first arrives in the country. Tariffs make the product your importing more expensive.
Because the cell requires certain substances such as oxygen and glucose, but do not need substances such as viruses or excess fat. The cell is able to control this, thereby ke â¦ eping the cell as healthy as possible.
The most important property of the cell membrane is its selective permeability: some substances can pass through it freely, but others cannot. Small and nonpolar (hydrophobic) molecules can freely pass through the membrane, but charged ions and large molecules such as proteins and sugars are barred passage.