Question 1 Write the characteristics of kingdom protochordata?

Question 2 Give few examples of  kingdom protochordata?

1)Animals are bilaterally symmetrical,triploblastic,have coelom.
2)They show a feature of body design named notochord.
3)They do not have proper notochord at all stages of their lives.
4)They are marine animals.
For Ex: Balanoglossus,herdemania.amphioxus.

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