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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.