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Author Question: One of the most important tool types invented by Homo erectus was the __________. A. hammerstone ... (Read 211 times) |
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There are approximately 3 million unintended pregnancies in the United States each year.
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Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.
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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).