Fishes mostly regulate buoyancy by precisely regulating the volume of gas in the
A) stomach.
B) gills.
C) body tissues.
D) pyloric cecum.
E) swim bladder.
Correct Answer:
Verified
Q20: Vertebrates are thought to have originated at
Q21: The networks of capillaries that filter blood
Q22: The vast majority of fish are
A)viviparous.
B)ovoviviparous.
C)oviparous.
D)brooders.
E)monoecious.
Q23: Which animals are not in the infraphylum
Q24: The grouping "Osteichthyes" is considered to be
A)monophyletic.
B)paraphyletic.
C)polyphyletic.
D)triphyletic.
E)biphyletic.
Q26: Fishes that migrate between freshwater and marine
Q27: A _ removes excess sodium chloride from
Q28: The semicircular canals of the inner ear
Q29: Some elasmobranchs,including hammerhead sharks,and guppies are
A)oviparous.
B)ovoviviparous.
C)omniviparous.
D)viviparous.
E)aviviparous.
Q30: The major osmoregulatory problems of saltwater fishes
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