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Regarding plant-derived stimulants, which combination is correct: is caffeine abundant in coffee seeds, is nicotine the alkaloid in tobacco, and is theobromine the primary alkaloid in cocoa/chocolate?

1. Regarding plant-derived stimulants, which combination is correct: is caffeine abundant in coffee seeds, is nicotine the alkaloid in tobacco, and is theobromine the primary alkaloid in cocoa/chocolate?

 

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