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Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

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Vaccines prevent between 2.5 and 4 million deaths every year.

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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Healed bone fractures can provide clues about activities and fresh fractures can yield information a Healed bone fractures can provide clues about activities and fresh fractures can yield information a
A Toyota/Lexus hybrid electric vehicle has a ready light. If the ready light is on, the engine can ... A Toyota/Lexus hybrid electric vehicle has a ready light. If the ready light is on, the engine can ...
Air flows through the PCV valve during idle, cruising, and light-load conditions. Air flows through the PCV valve during idle, cruising, and light-load conditions.
A complete kinetic scheme for a single nucleotide addition A complete kinetic scheme for a single nucleotide addition
Nader makes semi-annual payments of $3000 to pay off his loan. Because of unemployment, he ... Nader makes semi-annual payments of $3000 to pay off his loan. Because of unemployment, he ...
Dry outgrowths of the ovary wall of a maple (Acer) fruit form “wings” that catch the wind and ... Dry outgrowths of the ovary wall of a maple (Acer) fruit form “wings” that catch the wind and ...
Video: Biological organic compounds

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