The characteristic that separates cartilaginous fishes from lampreys is
A) four- chambered hearts.
B) sucker- like mouths lined with teeth.
C) lungs supplemented by air sacs.
D) jaws.
E) bony skeletons.
Correct Answer:
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Q25: Lampreys have reduced the size of commercial
Q26: Parasitic lampreys have
A) sucker- like mouths lined
Q27: A shark is a(n)
A) jawless fish.
B) invertebrate
Q28: A lamprey is a(n)
A) amphibian.
B) jawless fish.
C)
Q29: What is the advantage of paired appendages?
A)
Q31: The skeletons of rays and skates are
Q32: Why are lampreys classified as vertebrates?
A) They
Q33: Chondrichthyes includes
A) all fishes.
B) lampreys.
C) sharks.
D) frogs.
E)
Q34: Lampreys differ from other vertebrates because they
Q35: Lamprey populations introduced into the Great Lakes
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