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Author Question: Suppose one group of students learned a mathematical procedure by solving 20 problems ... (Read 87 times) |
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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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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.