The Phylum Urochordata Includes the

Q14: In both tunicates and cephalochordates,the ventral side

Q15: The reptiles,as well as the agnathans,are considered

Q16: Garstang's hypothesis of vertebrate evolution is the<br>A)annelid-vertebrate

Q17: Vertebrates differ from other chordates because they

Q18: Pikia,the earliest known chordate collected from the

Q22: Unlike most invertebrate phyla,the nerve cord of

Q22: The most likely candidate for the vertebrate

Q24: Of the four chordate hallmarks,adult tunicates have

Q28: "Sea squirts," the most common kind of

Q29: Lancelets belong to the subphylum _.