The class __________ is composed of vertebrates having eel-like bodies,a biting mouth with two rows of teeth,and numerous slime glands.
Correct Answer:
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Q24: To replace water lost osmotically,marine fish
A)pump water
Q25: In the elasmobranchs,the sexes are separate and
Q26: Marine bony fishes are
A)hypoosmotic regulators.
B)in osmotic equilibrium
Q27: The primary propulsive mechanism of a fish
Q28: Sharks remove excess sodium chloride from blood
Q30: The lungfishes
A)are all extinct.
B)do not really have
Q31: A representative of the ray-finned fish group,the
Q32: Sarcopterygians are the sister group of the
Q33: The mechanism whereby buoyancy is achieved in
Q34: Representatives of the most primitive non-teleost neopterygians
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