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

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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

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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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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

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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.

Mendel’s crosses resulted in specific phenotypic ratios Mendel’s crosses resulted in specific phenotypic ratios
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Video: Parkinson's Disease

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