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This shape is used all over the world to tell people of a biological hazard.

A biological hazard, or biohazard, is anything coming from living organisms (i.e. pollen, fungi, animals, insects, bacteria and viruses) that could be a threat to someone's health. It is represented by ☣, the biohazard symbol, which is used everywhere in the world. When people see this sign they know to take precautions, and to follow proper conduct for science labs. view more...