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Author Question: In a contest, two tractors pull two identical blocks of stone the same distance over identical ... (Read 1256 times) |
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Global positioning systems determine latitude, longitude, and altitude by measuring the distance fro
Children in Baltimore (1909) pull the stringy parts from beans in preparation for canning. Photograp