Ключевые слова: animal, aquatic, background, beach, beauty, biology, blue, cell, chain, color, copepod, crustacean, dark, fauna, fish, food, freshwater, laboratory, lake, life, light, macro, marine, micro, microscope, natural, nature, nauplius, night, ocean, peaceful, phytoplankton, plankton, planktonic, pond, research, science, sea, sparkle, swim, transparent, travel, tropical, underwater, water, wildlife, zoo, zoology, zooplankton,