Ключевые слова: acid, acidosis, atomic, atoms, bacteria, biodegradable, bioplastic, blood, carbon, carries, chemical, chemistry, composition, compound, decay, dehydrogenase, drawing, e270, exercise, fermentation, flat, formula, hydrogen, hydroxypropanoic, icon, lactate, lactic, lactide, line, milk, molecular, molecule, muscle, oxygen, plasma, polyester, polylactic, polylactide, serum, skeletal, sour, structure, tooth,