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Author Question: In a contest, two tractors pull two identical blocks of stone the same distance over identical ... (Read 4635 times) |
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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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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.