Classification of Animals
Question
The notochord is persistent throughout the life in
Easy
Solution
In cephalochordates (e.g., Amphioxus), the notochord extends from head to tail region and is persistent throughout their life.
In Urochordata (e.g., Ascidia), notochord is present only in the larval tail.
In Amphibia (e.g., Rana) and Pisces (e.g., Labeo), notochord is replaced by the vertebral column.
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