Explanation:
cyanobacteria are aquatic and photosynthetic, that Is they live in the water, and can manufacture their own food.Because they are bacteria, they are quite small and usually unicellular, though they often grow in colonies large enough to see.they have the distinction of being the oldest known fossils more than 3.5billion years old, in fact! it may surprise you then to known that the cyanobacteria are still around,they are one of the largest and most important group of bacteria on
