A notochord is most correctly defined as
A) a primitive spine.
B) the tissue that becomes the dorsal nerve.
C) a flexible stiffening rod extending the length of the body.
D) embryonic tissue that develops into bone and cartilage.
E) any tissue that functions in the role of a dorsal tubular nerve cord.
Correct Answer:
Verified
Q14: Organisms that retain the larval form of
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
Q20: Salps in the class Thalacea
A)are barrel-shaped open-ocean
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
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents