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Author Question: What was astronomer Aristarchus of Samos's contribution to science in the Hellenistic era? a. He ... (Read 43 times) |
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.