Which animal possesses an incomplete,branched | vedclass

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(D) An incomplete digestive system is one that has only a single opening to the outside of the body that serves as both mouth and anus. Planaria (a fl

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Planaria

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(D) An incomplete digestive system is one that has only a single opening to the outside of the body that serves as both mouth and anus. Planaria (a flatworm belonging to the phylum Platyhelminthes) exhibits a highly branched gastrovascular cavity which acts as an incomplete digestive system. Sea anemones (Cnidaria) also have a blind-sac body plan,but Planaria is the classic example often cited for a branched,incomplete digestive system in biological studies.

Which animal possesses an incomplete,branched,and blind-sac digestive system?

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