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Did you know?

Cyanide works by making the human body unable to use oxygen.

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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

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On average, the stomach produces 2 L of hydrochloric acid per day.

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Leder's experiment showing the binding of mRNA to DNA that contains an intron Leder's experiment showing the binding of mRNA to DNA that contains an intron
Two general models for the interconversion of inactive and active forms of a protein during cooperat Two general models for the interconversion of inactive and active forms of a protein during cooperat
Drug Actions at Binding Sites Drug Actions at Binding Sites
IgE binding to a mast cell. IgE binding to a mast cell.
Two classical models for the cooperative ligand binding by hemoglobin Two classical models for the cooperative ligand binding by hemoglobin
Ribosome structure and tRNA-binding sites interpreted from cryo-EM–generated data Ribosome structure and tRNA-binding sites interpreted from cryo-EM–generated data
Video: Basic rhythm - control centers in medulla oblongata, spirograph and normal tidal cycle

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