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Non-Chordate vs Chordate

Which of the ...

Question

Which of the following is the characteristic of non-chordates?

A

Notocord

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B

Dorsal tubular nerve chord

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C

Pharyngeal gills cleft

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D

Absence of hepatic portal system

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Solution

The correct option is B Absence of hepatic portal system
Dorsal tubular nerve cord, dorsal notochord, pharyngeal gill slits are primary chordate characters and are not seen in non-chordates. Hepatic portal system is also absent and not seen in Non-chordates.
So, the correct answer is option D.

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