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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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The human body produces and destroys 15 million blood cells every second.