The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.
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Your heart beats over 36 million times a year.
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Cyanide works by making the human body unable to use oxygen.
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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
Sandia ear-plug-sized samplers hang poised to sample gases relevant to climate and weather.
A difference in oxygen content between the atmosphere and the exhaust gases enables an O2S to ...
Changes in Radiation-Absorbing Gases
Outer Wall of The Flavian Amphitheater (Colosseum)