Frogs typically lay eggs in water,but some exhibit _____________ development,in which the tadpole stage is bypassed,and the frog that emerges from the egg appears as a miniature adult.
Correct Answer:
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Q16: The Caudata
A)are hermaphroditic.
B)have a tadpole stage.
C)retain their
Q17: Caecilians
A)live in the tropics.
B)are blind or nearly
Q18: _ are carnivorous in both the adult
Q19: The tetrapods originated in the Devonian period
Q20: The double circulation of tetrapods consists of
Q23: Most familiar North American salamanders (family Plethodontidae)lack
Q24: Some salamanders (such as the mud puppy
Q25: The frog heart has two atria and
Q26: Amphibians typically have webbed feet,but lack _
Q38: Frogs and toads belong to the order
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