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Author Question: According to the author of the textbook, although much has changed in American society in terms of ... (Read 15 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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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
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There are more bacteria in your mouth than there are people in the world.
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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.