In amphibians,a __________ valve in the conus arteriosus or ventral aorta helps direct blood into pulmonary and systemic circuits.
A) bicuspid
B) tricuspid
C) mitral
D) semilunar
E) spiral
Correct Answer:
Verified
Q17: True toads belong to the family
A)Hylidae.
B)Dendrobatidae.
C)Rhynchocephalia.
D)Ranidae.
E)Bufonidae
Q18: Female salamanders have a special pouch,the _,in
Q19: When the amphibians first moved onto land,there
Q20: Members of the amphibian order Anura have
Q21: Gas exchange across the skin is called
A)ram
Q23: Unlike other vertebrates,amphibians have contractile vessels called
Q24: Larval amphibians are usually _ in their
Q25: When in water amphibians
A)produce large quantities of
Q26: The _ of the amphibian middle ear
Q27: The _ receives airborne vibrations and transmits
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