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petri dishes
under only a 2x magnification this photograph revealed some of the details displayed atop a petri dish culture
petri dish culture of rod shaped gram positive clostridium septicum bacteria
this petri dish and its contents were incubated in a co2 incubator
temperature of 37c petri dish and its contents were incubated in a co2 incubator b abortus bacteria
petri dish and its contents were incubated in a co2 incubator b abortus bacteria
yersinia pestis bacteria grown in petri dish on a medium of sheeps blood agar
petri dish containing sheeps blood agar medium which had been inoculated with yersinia pestis bacteria
bacterium francisella tularensis on petri dish
petri dish containing a buffered charcoal yeast extract bcye agar medium