Answers

2016-01-11T10:20:22+05:30
Herdmania and  amphioxus characters are marine animals ,bilaterally symmetrical ,triplo blastic and have a coelom
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2016-01-11T12:03:57+05:30
Protochordata are bilaterally symmetrical, triploblastic, have ceolom.They have notochord. These are mostly marine animals. Balanoglossus, herdmania and amphioxus are good examples of protochordata. Hope this helps you
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