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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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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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For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

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The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

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