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Kingdom Animaliya — BIOLOGY STD 9 — Question

ICSE BoardEnglish MediumSTD 9BIOLOGYKingdom Animaliya2 Marks
Question
What is a notochord?
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Answer

a longitudinal flexible rod of cells that in the lowest chordates (such as a lancelet or a lamprey) and in the embryos of the higher vertebrates forms the supporting axis of the body.

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