Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.
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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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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
From space earth shows itself as a planet covered mostly by water.
Apparent and True Orbits of Alpha Centauri.
save our planet
Which is TRUE about the alternation of generations cycle that is diagramed above?
A space probe approaches a planet, taking measurements as it goes. If it detects a potential ...