The cartilaginous fishes do NOT include
A) skates.
B) rays.
C) sharks.
D) eels.
E) All of the choices are cartilaginous fishes
Correct Answer:
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Q8: Sharks have _ scales.
A)placoid
B)ctenoid
C)cycloid
D)ganoid
E)polyploid
Q9: The most diverse fish group is the
A)ray-finned
Q10: The large spiracles on the top of
Q11: Unlike other vertebrates,the body fluids of hagfishes
Q12: The lateral-line of a shark is used
Q14: The hagfish has a keen sense of
A)depth
Q15: Shark reproduction and development involves
A)clearing a bottom
Q16: The most primitive of the early fishes
Q17: Hagfishes
A)are entirely fresh water animals.
B)are parasitic.
C)have a
Q18: Cartilaginous fishes
A)lost the heavy dermal armor of
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