Complete digestive system start appearing from ? ArthropodaAschelminthAnnelidaPlatyhelminth
Question
Complete digestive system start appearing from ? ArthropodaAschelminthAnnelidaPlatyhelminth
Solution
The complete digestive system starts appearing from the phylum Annelida. This phylum includes segmented worms like earthworms. Unlike the previous phyla, Annelida have a complete digestive system with both a mouth and an anus, allowing for a one-way flow of food and waste.
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