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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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).
A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.
In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.
![In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism](https://biology-forums.com/gallery/47/medium_375348_18_08_15_9_36_29_222991202.jpeg)
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