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The average office desk has 400 times more bacteria on it than a toilet.
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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.