Cartilaginous fishes differ from lampreys because they
A) have a three-chambered heart.
B) lack a skeleton.
C) are ectotherms.
D) have jaws.
E) lack a skull.
Correct Answer:
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Q25: Lamprey populations introduced into the Great Lakes
Q26: The characteristic that separates cartilaginous fishes from
Q27: Lampreys have reduced the size of commercial
Q28: Which were the first tetrapods to move
Q29: Fins composed of a web of skin
Q31: Which vertebrate group is the most diverse?
A)
Q32: A(n)_ protects the internal organs of ray-finned
Q33: Why are lampreys classified as vertebrates?
A) They
Q34: Most _have swim bladders.
A) jawless fishes
B) ray-finned
Q35: Fins composed of rod-shaped bones surrounded by
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