In which of the following ways do frogs differ

from other land vertebrates?



a. the circulatory system does not play a role
in respiration
b. lungs take in oxygen but do not release
carbon dioxide
c. the respiratory surface is in their gills
d. they do not possess lungs
e. frogs differ in more than one of these ways
from other land vertebrates


B

Biology & Microbiology

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