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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

The image formed on the retina is inverted. The brain rights the image as part of the interpretation The image formed on the retina is inverted. The brain rights the image as part of the interpretation
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Intensity and Wavelengths of Emitted Radiation Intensity and Wavelengths of Emitted Radiation
An overlapping record extends back thousands of years of tree ring width An overlapping record extends back thousands of years of tree ring width
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The timing of teratogen exposure The timing of teratogen exposure
Video: Type of Cell Junctions - Desmosome, Hemidesmosomes and Gap Junctions

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