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Question
Notochord is persistent throughout the life in____________
Notochord is persistent throughout the life in____________
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Solution
The correct option is C Cephalochordates
Phylum Chordata is classified into three subphyla as Urochordata, Cephalochordata and Vertebrata.
In Urochordata, the notochord is present only in larval stages and as the animal reaches the adult stage, notochord disappears. This is called retrogressive metamorphosis.
In Cephalochordata, the notochord persists throughout the life and extends from head to tail region.
In vertebrates, the notochord is replaced with vertebral column.
Phylum Chordata is classified into three subphyla as Urochordata, Cephalochordata and Vertebrata.
In Urochordata, the notochord is present only in larval stages and as the animal reaches the adult stage, notochord disappears. This is called retrogressive metamorphosis.
In Cephalochordata, the notochord persists throughout the life and extends from head to tail region.
In vertebrates, the notochord is replaced with vertebral column.
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