There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Inheritance of hemophilia in European royalty
The large orb web of Araneus diadematus (European garden spider).
Prisoners from the front (1866) established Winslow Homer's reputation for spare truthfulness.
The European Core: Cities
The European Alps have lost ~30% to 40% of surface area and ~50% of volume since the 1850s.