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Author Question: In 2015, an estimated 42 million tons of ______ was disposed of around the world. Fill in the ... (Read 72 times) |
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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.
The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.