petri dish with enterobacteria. bacteria colonies culture on selective agar media

organ pink food purple dessert eye hand produce petal finger circle violet lip flower skin ear nose red petri dish enterobacteria laboratory bacterium microbiology research science biology medicine biotechnology growth plate media medical technology agar culture disease safety test virus health isolated white colony biochemistry education experiment illness medium micro people scientific photography color image healthcare microorganism pathogen coli analysis analyzing grow horizontal hygiene identification