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Author Question: Which of the following heart chambers pumps oxygenated blood to the body? A) Left ventricle B) ... (Read 38 times) |
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.