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Author Question: Tears, saliva, urine, mucous secretions, and sweat act as chemical barriers. (Read 34 times) |
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
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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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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Skin structure, including the three layers of the skin and the accessory organs: sweat gland, sebace
(A) Dornier Compact Delta® lithotripsy system. Acoustic shock waves generated by the shock-wave-gene