KnowraSecondary metaboliteLinked fromLinked fromThe 12 pages that link to Secondary metabolite, each with the reason it gives.All 12Broader topic 2Related 2Narrower topic 8Chemical ecologyBroader topic: Many defensive and signaling chemicals belong to this broad class.PharmacognosyBroader topic: Many pharmacognostic agents are secondary metabolites with defensive or signaling roles in nature.