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Author Question: Which of the following groups are ortho, para-directing? A) CO2CH3 B) CONH2 C) SO3H D) E) ... (Read 36 times) |
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
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The average adult has about 21 square feet of skin.