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.
In fact, even though itâs only a little further from the Sun than Uranus, it sees only 40% of the solar radiation received by Uranus. The surface temperature of Neptune dips down to 72 kelvin, or -201Â° C. Thatâs cold. You might be surprised to know that the temperature on the surface of Uranus isnât much warmer.