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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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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.
![The sexual cycle of flowering plants involves alternation of sporophyte and gametophyte generations.](https://biology-forums.com/gallery/47/medium_33_24_07_11_10_29_04.jpeg)
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