Structure of blue-green algae, cyanophytes or cyanobacteria. Drawing. News Photo - Getty Images

Structure of blue-green algae, cyanophytes or cyanobacteria. Drawing. Get premium, high resolution news photos at Getty Images

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22 Cyanobacteria Drawing Stock Photos, High-Res Pictures, and

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Blue-Green Algae: A Brief Introduction to the Prokaryotic

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Filamentous blue-green algae (cyanobacteria) and coccal green