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Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Sexual assault evidence collection kit. Sexual assault evidence collection kit.
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Video: Mendel's pea plant, Pisum sativum experimental

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