Vaccines prevent between 2.5 and 4 million deaths every year.
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In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.
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There are more bacteria in your mouth than there are people in the world.
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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.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Recombinants are meiotic output different from meiotic input
Internal Anatomy of the pigeon
Internal Renal Anatomy
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum