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Author Question: Which innovation enabled Romans to erect giant amphitheaters and public baths? a. Steel b. ... (Read 110 times) |
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
J. P. Morgan, the financial genius, staved off ruinous competition among steel firms by combining mo
This girl ran four spinning machines in a cotton mill in Whitnel, North Carolina. Only 4 feet, 3 inc