Green algae

Green algae are a diverse group of aquatic organisms that are primarily characterized by their green color, which comes from the pigment chlorophyll. They can be found in freshwater, saltwater, or on moist land. As photosynthetic organisms, green algae use sunlight to produce energy, playing a vital role in aquatic ecosystems' food chains and oxygen production. They range from single-celled forms to multicellular structures and can reproduce rapidly under favorable conditions. Green algae are important for ecological balance, serve as a food source for various aquatic animals, and have potential applications in biofuels, nutrition, and biotechnology.