Biology questions? please help!

Posted on 2016-04-19 18:51:00 in Biology by MAYEE

The adult form of organisms within the subphylum Urochordata have all of the defining features of the chordates. True or false? 
Which of the following is NOT a defining feature of chordates? (I know A B and C are true. I don't know about D.) 

A. Notochord 

B. Pharyngeal pouches 

C. Postanal tail 

D. Anterior tubular nerve cord 

E. All of the above are defining features

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