Ключевые слова: algae, anatomy, aquatic, asia, background, biology, black, cell, college, detail, division, education, freshwater, green, growing, health, healthy, heart, heartbeat, hydrilla verticillata, isolated, kelp, laboratory, leaf, lesson, life, light, macro, marine, meal, micro, microbiology, microorganism, microscope, microscopy, natural, nature, nucleus, nutritious, organism, plankton, plant, pond, primitive, product, science, slippery, vegetable, water,