(PDF) Algae: the world's most important “plants” - ResearchGate
Algae are a diverse group of photosynthetic protists, ranging from microalgae to large seaweeds, that produce approximately 50% of the world's oxygen. These aquatic organisms, which include green, red, and brown varieties, lack true plant structures and play a critical role in ecosystems while being developed for biofuels and nutritional products. For a comprehensive overview of algal characteristics and economic importance, review the LND College PDF study at LND College. algaisa.pdf