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Author Question: At the beginning of the twentieth century, sociologists rejected the doctrine of social Darwinism ... (Read 28 times) |
In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
There are more bacteria in your mouth than there are people in the world.
In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.