Question
Differentiate between complete and incomplete digestive systems.
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Complete Digestive System
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Incomplete Digestive System
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1.
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When the digestive system has two openings, the mouth for ingestion and the anus for egestion, the digestive system is said to be complete.
e.g. human beings.
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When the digestive system has only one opening for both ingestion and egestion, the digestive system is said to be incomplete.
e.g. Hydra.
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