Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
The stability of carbon bonds makes life possible even in extreme environments
Carbon Dioxide Concentrations for 400,000 years
Functional Groups of Carbon
Ho to calculate the ATP of a 12-Carbon fatty acid, beta oxidation
What is the total number of valence electrons in a silicate ion, SiO32-?
Partial pressures (in mm Hg) for oxygen (red boxes) and carbon dioxide (blue boxes) in the atmospher