35. Which of the following is NOT a defining trait of the phylum Chordata?
(A)notochord
(B)vertebrae
(C)dorsal hollow nerve cord
(D) pharyngeal slits
(E)post anal tail
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統計: A(17), B(73), C(7), D(16), E(19) #938830
統計: A(17), B(73), C(7), D(16), E(19) #938830