A blood alcohol concentration (BAC) or blood alcohol level (BAL) reflects the amount of alcohol in the body. Food, type and quantity of beverage, weight, sex, and rate of elimination determine the BAC after the consumption of alcohol.
The process of oxygen transfer in the gills of a fish is a good example of the benefits of countercurrent exchange. As oxygen poor blood meets an opposed flow of oxygen rich water, the oxygen begins to diffuse out of the water and into the blood stream.
Warm core ring â A warm core ring is a type of mesoscale eddy which breaks off from an ocean current, e. g. the Gulf Stream or the Kuroshio Current. The ring is an independent circulatory system of water which can persist for several months.