Question: what is the difference between algae and blue green algae?
Answer: Blue-green algae or cyanobacteria possess characteristics of algae – they make chlorophyll-a and use sunlight as an energy source for growth, but have bacterial cells (prokaryotic) rather than algal cells (eukaryotic). ... Some freshwater cyanobacterial blooms can produce highly potent toxins known as cyanotoxins.