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Which among the following is incorrect about types of digestive system in animals?

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in Biology – Class 11 by (272k points)
Which among the following is incorrect about types of digestive system in animals?

(a) A digestive system with one opening to outside is called incomplete digestive system

(b) A digestive system with separate openings for ingestion and egestion is called complete digestive system

(c) Platyhelmenthes have a complete digestive system

(d) Sea sponges have an incomplete digestive system

The question was posed to me in an online interview.

My question is based upon Basis of Classification in Animals topic in portion Animal Kingdom of Biology – Class 11

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Right choice is (c) Platyhelmenthes have a complete digestive system

Best explanation: A digestive system with one opening to outside is called an incomplete digestive system and a digestive system with separate openings for ingestion and egestion is called complete digestive system. Platyhelmenthes and sea sponges have an incomplete digestive system.

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