What is the type of digestive system present in beings of the phylum Arthropoda? Are these animals protostomes or deuterostomes?

What is the type of digestive system present in beings of the phylum Arthropoda? Are these animals protostomes or deuterostomes?
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The digestive tube of arthropods is complete, containing mouth and anus. Arthropods are protostome animals, i.e., in their embryonic development the blastopore originates the mouth.
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