Well, brownness, for starters.
I know for sure it is not brown, i think it may be rainbow color tho
The other name for the brown algae is Phaeophyceae.
Distinguishing algae from protists is like distinguishing beagles from dogs. Brown algae (Phaeophyta), red alge (Rhodophyta), and green algae (Chlorophyta) are all diverse "sub-groups" of the much larger group of Protista.
Green is the color of algae........ some algae are green, Red, Brown, or Golden Brown
brown algae
Brown algae are always multicellular, never unicellular or colonial.
Brown algae
Brown Algae
red algae, green algae, and brown algae
brown algae
Some of the types of algae are staghorn algae, black brush or beard algae, green spot algae, and green thread hair algae. Other types of algae are green water algae, and black green algae.
Seaweed belongs to the phylum Algae, which includes a diverse group of photosynthetic organisms. Within the phylum Algae, seaweed is classified in different classes based on its characteristics and pigments. Some common classes of seaweed include Chlorophyceae (green algae), Phaeophyceae (brown algae), and Rhodophyceae (red algae).