Compare the structure of brown and red algae. Which department representatives have a more complex structure?

Algae are classified as lower plants, since they have no tissues and organs. That is, they are not characterized by the presence of a root, stem, leaves and other parts of a higher plant. Algae multiply by spores. Green algae do not live very deep in water, unlike brown algae. This allows them to get enough sunlight for photosynthesis. Brown algae have a characteristic color due to lack of photosynthesis due to lack of sunlight deep under water. Brown algae have a more complex structure.