Ключевые слова: abstract, analysis, antibiotics, bacillus, biology, didactic, dirty, disease, environmental, experiment, food, fungal, fungi, fungus, germs, growth, hazard, health, laboratory, life, macro, medical, medicine, microbe, microbiology, mildew, mold, moldy, mould, mycelia, natural, organic, organism, petri, plant, proliferation, replication, research, rotten, safety, sanitation, science, sickness, spoiled, spore, spread, substance, subtilis, toxic, unhealthy,