biology graphic explain biohazard sign with biosafety level 1 to 4. Explanation and example of organism.
Schlüsselwörter
biohazard,
risk,
attention,
restricted,
contamination,
forbidden,
caution,
protect,
alert,
security,
weapon,
virus,
isolated,
dangerous,
infectious,
beware,
biological,
science,
laboratory,
chemical,
warn,
epidemic,
toxic,
area,
safety,
hazard,
laboratory,
danger,
bio,
signs
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