Linked from
The 13 pages that link to Agar, each with the reason it gives.
ProtistRelated: Red-algal protists provide agar for food products and laboratory culture media.
AlgaeRelated: Red algal cell walls provide agar for culture media and food products.
GalactoseRelated: Agar contains galactose-based polysaccharides, including agarose.
SeaweedRelated: Red seaweeds supply agar, a valuable thickener and culture medium.
Edible seaweedRelated: Agar is another seaweed-derived ingredient that changes food texture.
AlgacultureRelated: Cultivated red algae can supply the raw material for agar production.