Parasitic lampreys have
A) sucker- like mouths lined with teeth.
B) bony jaws.
C) radial proportions.
D) a three- chambered heart.
E) internal fertilization.
Correct Answer:
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Q21: A(n) protects the internal organs of ray-
Q22: Lungfishes are classified as
A) jawless fishes.
B) lobe-
Q23: Cartilaginous fishes differ from lampreys because they
A)
Q24: Which were the first tetrapods to move
Q25: Lampreys have reduced the size of commercial
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)
Q30: The characteristic that separates cartilaginous fishes from
Q31: The skeletons of rays and skates are
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