Topics: Natural Products, Secondary Metabolites, natural product nomenclature, Biogenesis, Biosynthesis, Terpenoids, Acetyl-coenzyme A, terpenes biosynthesis Mevalonate Pathway, Terpenes classification, Hemiterpenoids, Hemiterpenes, Monoterpene, Monoterpenoid, Acyclic monoterpenes, Monocyclic monoterpenes, Bicyclic monoterpenes, ionone, Sesquiterpenes, Acyclic sesquiterpenes, Monocyclic sesquiterpene, Bicyclic sesquiterpenes, Tricyclic sesquiterpenes