The osmotic balance between blood and interstitial fluid is maintained by plasma proteins called albumins.
Sean, who weighs the least of the three, will have the highest blood alcohol concentration (BAC).
The less a person weighs, the more they will be affected by a given amount of alcohol. People of the same weight, even the same gender, individuals with a lower percentage of body fat will have lower blood alcohol concentration than those with a higher percentage of body fat.
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The continent of Africa is found mostly on the African Plate.