Paramecium, enlarged approximately 1600 times. The model shows the cells of protozoa: macronuclei and micronuclei, contractile vacuoles, membranous cell openings, myofilaments and food vacuoles, the formation of endoplasmic and exoplasmic cells, and neural filament networks. A detailed block shows the structure of the outer plasma membrane, as well as the position and order of hair follicles and a series of cilia in a typical order. Divided into 2 parts. On a stand with a base and explanatory instructions.