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A biological hazard, or biohazard, is a biological substance that poses a threat (or is a hazard) to the health of living organisms, primarily humans. This could include a sample of a microorganism , virus or toxin that can adversely affect human health .
All parts of the Biohazard sign can be drawn with a compass and ruler. The basic outline of the symbol is a plain trefoil, which is three circles overlapping each other equally like in a triple venn diagram with the overlapping parts erased. Reason
The sign is commonly referred to as a radioactivity warning sign, but it is actually a warning sign of ionizing radiation. Ionizing radiation is a much broader category than radioactivity alone, as many non-radioactive sources also emit potentially dangerous levels of ionizing radiation.
Advanced Placement (AP) Biology (also known as AP Bio) is an Advanced Placement biology course and exam offered by the College Board in the United States. For the 2012–2013 school year, the College Board unveiled a new curriculum with a greater focus on "scientific practices".
A skull and crossbones is a symbol consisting of a human skull and two long bones crossed together under or behind the skull. [1] The design originated in the Late Middle Ages as a symbol of death and especially as a memento mori on tombstones.
Shares of apparel retailer Urban Outfitters (NASDAQ: URBN) soared on Wednesday after the company reported financial results for its fiscal third quarter of 2025. As of 11:30 a.m. ET, Urban ...
MILWAUKEE — The teacher and the student killed in the tragic shooting at a Madison, Wisconsin, private school were identified by a medical examiner's office on Wednesday.
A complete understanding of experimental risks associated with synthetic biology is helping to enforce the knowledge and effectiveness of biosafety. [3] With the potential future creation of man-made unicellular organisms, some are beginning to consider the effect that these organisms will have on biomass already present.