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Author Question: To ensure that a selected sample is a representative one, researchers who conduct large-scale ... (Read 21 times) |
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
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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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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.