A characteristic of amphibians is
A) a mostly bony skeleton.
B) usually four limbs present.
C) a smooth,moist skin with many glands.
D) all of these
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Q6: The decline in amphibian populations,particularly frogs,may be
Q7: Amphibians relied less on the lateral line
Q8: Most of our familiar frogs belong to
Q9: Although most amphibians have a larval metamorphosis
Q10: The mud puppy Necturus
A)does not have gills.
B)does
Q12: The frogs and toads are the most
Q13: Amplexus refers to
A)the way a male frog
Q14: Most amphibians remain dependent on their aquatic
Q15: Viviparity is common among the caecilians.
Q16: The Caudata
A)are hermaphroditic.
B)have a tadpole stage.
C)retain their
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