Dental General 188b333b Early Bell stage differ from advanced Bell stage: A Morphodifferentiation occurs in Early Bell stage and Histodifferentiationoccurs in advanced Bell stage. B Morphodifferentiation occurs in advanced Bell stage and Histodifferentiation occurs in Early Bell stage. C Different in Apposition. D None. High-Yield Explanation These are developmental stages of tooth. Histodifferentiation occurs in early bell stage white morphodifferentiation occurs in advanced bell stage.