Salps in the class Thalacea
A) are barrel-shaped open-ocean organisms.
B) have larger transparent bodies.
C) may be luminous at night.
D) may occur singly or in long chains.
E) All of the choices are correct.
Correct Answer:
Verified
Q15: A dorsal tubular nerve cord is
A)another name
Q16: The name Urochordata means literally
A)"tail chordates."
B)"head chordates."
C)"kidney
Q17: The phylum Urochordata includes the classes
A)Ascidiacea,Cephalaspidomorphi,and Myxini.
B)Appendicularia,Cephalochordacea,and
Q18: The perforated pharynx of chordates first evolved
Q19: A notochord is most correctly defined as
A)a
Q21: The urochordates are enclosed in a nonliving
Q22: Of the five chordate hallmarks,adult tunicates have
Q23: Unlike most invertebrate phyla,the nerve cord of
Q24: The lancelets or Branchiostoma are found
A)very rarely
Q25: In both tunicates and cephalochordates,the ventral side
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