What ecological role does algae play?
Seaweed is also an algae and not only is grazed by fish but is a valuable fertilsier for use in farming. Algae may also be responsible for kick starting the generation of oxygen in the atmosphere of the early Earth. Photosynthesis is a clever trick that algae and plants have developed to turn sunlight, carbon dioxide and water into sugars and oxygen. We owe our life to this process since it gives us food and air to breathe.
