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Author Question: _____ is the property of increasing pitch that accompanies increases in the tone's frequency. A) ... (Read 106 times) |
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Illicit drug use costs the United States approximately $181 billion every year.
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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
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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.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.