Ключевые слова: agriculture, bacteria, biology, chemical, chemistry, coli, concept, contamination, diet, female, food, fresh, gmo, green, health, healthy, lab, laboratory, leaf, lettuce, medical, medicine, microbiology, microscope, modified, nutritionist, organic, product, raw, research, romaine, safety, salad, science, scientific, technology, test, testing, tomato, tube, vegetable, vegetables, woman, young,