The notochord
A) forms the nerve cord in an adult.
B) becomes the digestive system.
C) is for muscle attachment.
D) becomes the brain.
E) develops from the pharyngeal gill slits.
Correct Answer:
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Q7: _have a dorsal nerve cord.
A) Starfishes
B) Bugs
C)
Q8: All chordates have
A) a backbone.
B) gills.
C) a
Q9: The great size and mobility of the
Q10: Which of the following best describes which
Q11: Which characteristic differentiates hagfishes from other craniates?
A)
Q13: Lancelets live in
A) sulfur springs.
B) the sea.
C)
Q14: At some stage of the life cycle,
Q15: The discovery of a coelacanth in South
Q16: Which of the following features is absent
Q17: In vertebrates, the analogous structure to the
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