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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.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Children can fast map the meanings of words in a single exposure. Children can fast map the meanings of words in a single exposure.
Common Root Words and Combining Forms Common Root Words and Combining Forms
Common Root Words and Combining Forms Cont. Common Root Words and Combining Forms Cont.
Describe the Conceptual Forecasting Framework in your own words. Describe the Conceptual Forecasting Framework in your own words.
Describe the Conceptual Forecasting Framework in your own words. Describe the Conceptual Forecasting Framework in your own words.
Likelihood words grade 1 Likelihood words grade 1
Video: Inflammation and Fever

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