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Solution


Q.

Important characteristic that hemichordates share with chordates is                      [2017]
1 Ventral tubular nerve cord  
2 Pharynx with gill slits  
3 Pharynx without gill slits  
4 Absence of notochord  

Ans.

(2)

An important characteristic that hemichordates and chordates share is the presence of pharyngeal gill slits. Gill slits are dorsal in position in hemichordates, whereas they are lateral in chordates.