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Author Question: It is advised that parents understand all of the following information about their child's ... (Read 82 times) |
Illicit drug use costs the United States approximately $181 billion every year.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
There are more nerve cells in one human brain than there are stars in the Milky Way.
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.