Microbiologist hold petri dish with bile esculin agar showing bacterial colonies of Enterococcus spp

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• biochemistry
• biotechnology
• laboratory
• lab
• lab test
• science
• microbiology
• researcher
• black glass
• bacteria
• background glass
• culture
• black
• concept
• glass
• white
• background white
• holding
• bg black
• glass plate
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