(A) birds (X)
(B) human (X)
(C) fish (X)
(D) frog ()
Answers: In which animal respiratory surface are found in more than one organ frog.
(A) birds (X)
(B) human (X)
(C) fish (X)
(D) frog ()
Answers: In which animal respiratory surface are found in more than one organ frog.
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