Ключевые слова: actinomyces, agar, background, bacteria, bacterial, bacterial colonies, bacterium, biology, biotechnology, characteristic, colony, contaminated water, contamination, culture, danger, disease, education, environment, experiment, food, fungi, growing, growth, health, health care, hygiene, isolated, lab, laboratory, legionnaires disease, medicine, micro, microbe, microbial, microbiology, microorganism, molds, neisseria gonorrhoeae, pattern, petri, petri dish bacteria, petri dishes, plate, research, risk, sample, samples, science, species, yeast,