Answer to Question #61400 in Other Biology for bbb
7 Which of these is not true of the chordates?
have tightly packed cells
have tubular nerve chords
they have no notochord
have gill slit at some stages
8 A vertbral column replaces the ------------ in vertebrates
tubular nerve chords
flexible rod of tightly packed cells
9 Which of the following is not true of the vertebrates?
possession of endoskeleton
have a well developed sense organs
bodies are not bilaterally symmetrical
7. they have no notochord 8. Notochord 9. bodies are not bilaterally symmetrical