11. When pollution is at its worst, the usually green algae -filled water runs black. 12. Phycology includes the study of prokaryotic forms known as blue-green algae or cyanobacteria. 13. Their host organisms are commonly known as the green algae and land plants. 14. It was produced by cyanobacteria, also known as blue-green algae , living inside them. 15. This can lead to blooms of blue-green algae if nutrient levels are high. 16. The next generation features Aaron Baddeley and his green algae bars. 17. The identity of the organism as a blue-green algae proved to be mistaken. 18. Euglenoids descend from an ancestor that took up green algae by secondary endosymbiosis. 19. A few other organisms rely on green algae to conduct photosynthesis for them. 20. Green algae and purple fungus also cling to its marble surface.
