Blue-green algae are Cyanobacteria. August 15, 2022 715 × 546 Blue-green Algae From: https://slidetodoc.com/presentation_image_h/03a45a07e35b65abe288cd3af98496f8/image-19.jpg From: https://slidetodoc.com/presentation_image_h/03a45a07e35b65abe288cd3af98496f8/image-19.jpg