Which of the following is a primary chordate characteristic?
A
Paired nerve cord
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B
Dorsal tubular nerve cord
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C
Solid ventral nerve cord
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D
Ganglionated nerve cord
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Solution
The correct option is B
Dorsal tubular nerve cord
The primary chordate characteristics include notochord, dorsal hollow nerve cord and pharyngeal gill slits. These distinguish them from the non-chordates.