Algae: source of food (e.g., seaweeds like Porphyra), produce agar, carrageenan and alginates used in food/industry, used as fertilizer and feed, oxygen producers and biofuel potential.
Gymnosperms: important timber trees (Pinus, Cedrus), produce resins, turpentine, medicinal compounds (e.g., Taxus → taxol), and have ornamental and paper-pulp uses.

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