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Why can humans live at a height of 2,500m?
Experts finally discovered that it is genetics that helps Ethiopians live at thousands of meters above sea level.
Oxygen In Blood
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Articles about Oxygen In Blood
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Why is vein green?
The blue of veins is visible due to the interaction of light with the skin, the amount of oxygen in the blood and other factors.
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Producing electricity with snails
A snail's blood sugar is used to generate electricity for special electrodes in its body. The meaning of this discovery is that one day our bodies will also make electri…