Did you know?
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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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.
20 weeks old human fetus
Drugs and Human Behavior
Personality differences in the United States
A taxonomy of the human species.
Comparison between human chromosome 21 and chimpanzee chromosome 22
The Human Skeleton