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Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.