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Author Question: The distance to the Andromeda Galaxy is estimated at about 2 106 light years. A light year is the ... (Read 60 times) |
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.