A) Lizard
B) Frog
C) Sparrow
D) Earthworm
Correct Answer: B
Solution :
During metamorphosis, frog respire through Gills. Once mature, frogs respire through Lungs. On dry land most of the frogs respiration occurs through the skin. The skin of frog is permeable to Oxygen, Carbondioxide and Water.You need to login to perform this action.
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