A shark is a(n)
A) invertebrate chordate.
B) jawless fish.
C) cartilaginous fish.
D) amphibian.
E) bony fish.
Correct Answer:
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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
Q36: Lampreys differ from other vertebrates because they
Q37: Why have populations of many ray -finned
Q39: Lungfishes are classified as
A) cartilaginous fishes.
B) ray-finned
Q40: The skeletons of rays and skates are
Q41: Which vertebrate group has a three-chambered heart?
A)
Q42: Amphibians are not especially successful land -dwellers
Q43: Which of the following is TRUE of
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