Can someone tell me what kind of digestive and respiratory system Phylum Hemichordata exhibits?
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- Digestive system is complete, starts in a mouth and ends in anus. Behind the mouth is a buccal cavity which leads into a pharynx, an oesophagus, intestine and ultimately to terminal anus. It may be a straight or U shaped tract. Feeds with the help of cilia in the mouth - cliliary feeders. A buccal diverticulum or stomochord is formed from the foregut is present in the proboscis. Respiration takes place through the entire body surface. The pharynx posses one to many gill slits (gills not present). These gill slits are also believed to be sites of gaseous exchange.
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