petri dishes stacked in workbench of laboratory

agar analysis analyze analyzing background bacteria bacterium bio biochemistry biological biology biotechnology blue cell cells clinical colonies colors cultivating culture disease dishes doctor equipment fridge fungi genetics germs glove growing growth health healthcare hospital infection inoculating inoculation lab laboratory loop many media medical medicine micro microbiologist microbiology nurse organism petri planting plates professional research sample science scientific scientist showing sickness stack technician technology test tubes urine virus work workbench worker