The characteristic that separates cartilaginous fishes from lampreys is
A) lungs supplemented by air sacs.
B) four-chambered hearts.
C) jaws.
D) bony skeletons.
E) sucker-like mouths lined with teeth.
Correct Answer:
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Q21: Parasitic lampreys have
A) radial proportions.
B) sucker-like mouths
Q22: What is the advantage of paired appendages?
A)
Q23: Chondrichthyes includes
A) lampreys.
B) whales.
C) all fishes.
D) sharks.
E)
Q24: A lamprey is a(n)
A) amphibian.
B) bony fish.
C)
Q25: Lamprey populations introduced into the Great Lakes
Q27: Lampreys have reduced the size of commercial
Q28: Which were the first tetrapods to move
Q29: Fins composed of a web of skin
Q30: Cartilaginous fishes differ from lampreys because they
A)
Q31: Which vertebrate group is the most diverse?
A)
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