Ibihumyo bya Morel ni ubwoko bwibihumyo bidasanzwe biribwa, bikundwa cyane kuburyohe bwihariye nagaciro kintungamubiri. Mu myaka ya vuba aha, hamwe no gukurikirana indyo yuzuye hamwe no kwiyongera kw'ibikoresho byujuje ubuziranenge, isoko ku bihumyo bya morel naryo riragenda ryiyongera uko umwaka utashye. Kubwibyo, iterambere ryiterambere ryibihumyo ni byinshi cyane.