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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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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.