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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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.
A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.