What are the differences between a blue algae cell and a green algae cell?”
The blue algae are an ancient organism trunk. They are probable the oldest green organisms, which ever lived on earth, representing a defined, systematic unit. Despite their wealth of shapes and their world-wide spreading, they prefer to live in biotopes, i.e. locations of extreme ecological constitution. The blue algae differ by the complete absence of flagellates as well as the specific pattern of colour and reserve materials from all other algae. The size of their cell, which generally only achieves dimensions around 5 µm, is also a characteristic trait.
