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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

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A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Myocardial Oxygen supply and demand Myocardial Oxygen supply and demand
A conventional zirconia oxygen sensor can only reset to exhaust mixtures that are richer or leaner ... A conventional zirconia oxygen sensor can only reset to exhaust mixtures that are richer or leaner ...
A hole in the exhaust system can cause outside air (containing oxygen) to be drawn into the exhaust ... A hole in the exhaust system can cause outside air (containing oxygen) to be drawn into the exhaust ...
Hill plots of oxygen binding for myoglobin and hemoglobin under physiological conditions Hill plots of oxygen binding for myoglobin and hemoglobin under physiological conditions
Comparison of free energies of hydrolysis of thioesters and oxygen esters Comparison of free energies of hydrolysis of thioesters and oxygen esters
If 2.00 g of helium gas and 4.72 g of oxygen gas are mixed together, what is the mole fraction ... If 2.00 g of helium gas and 4.72 g of oxygen gas are mixed together, what is the mole fraction ...
Video: Cell mediated immune response to a viral infection Animation

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