Ключевые слова: amoeba, background, biology, black, bursaria, caudatum, cell, cilia, ciliate, ciliophora, cytoplasm, drawing, education, fauna, graphic, illustration, laboratory, life, light, macro, medical, medicine, micro, microbiology, microorganism, nucleus, organism, osmosis, paramecium, plankton, protozoa, school, science, single, transparent, unicellular, vacuole, water, white,