A shark is a(n) :
A) bony fish.
B) cartilaginous fish.
C) jawless fish.
D) amphibian.
E) invertebrate chordate.
Correct Answer:
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Q29: What is the advantage of paired appendages?
A)They
Q30: Why have populations of many ray-finned fish
Q31: A(n)_ protects the internal organs of ray-finned
Q32: Which vertebrate group is the most diverse?
A)Actinopterygii
B)Actinistia
C)Chondrichthyes
D)Mammalia
E)Reptilia
Q33: Lampreys have reduced the size of commercial
Q35: The skeletons of rays and skates are
Q36: A lamprey is a(n):
A)bony fish.
B)cartilaginous fish.
C)jawless fish.
D)amphibian.
E)invertebrate
Q37: Chondrichthyes includes:
A)whales.
B)lampreys.
C)all fishes.
D)frogs.
E)sharks.
Q38: Fins composed of a web of skin
Q39: Cartilaginous fishes are characterized by:
A)bony skeletons.
B)four-chambered hearts.
C)lungs
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