__________have a dorsal nerve cord.
A) Starfishes
B) Bugs
C) Earthworms
D) Sharks
E) Leeches
Correct Answer:
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Q2: In all chordates, the notochord
A) may or
Q3: Larval sea squirts
A) lack a notochord.
B) live
Q4: Which of the following has a ventral
Q5: A tunicate is a(n)
A) amphibian.
B) invertebrate chordate.
C)
Q6: The earliest vertebrates lacked
A) gills.
B) jaws.
C) skeletons.
D)
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)
Q12: The notochord
A) forms the nerve cord in
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