Home › AP EAMCET › Biology › Zoology Unit 4: Animal Diversity-II: Phylum Chordata › Which structure is present in every chordate at …
Which structure is present in every chordate at some stage of life?
AA rod-like notochord
BA ventral solid cord
CA dorsal muscular heart
DA chitinous outer shell
Answer & Solution
Correct answer: A. A rod-like notochord
A flexible rod, the notochord, runs along the axis of the body in all chordates and gives the phylum its name.
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