MCQ
Respiratory organs of frog are:
- ASkin
- BLungs
- ✓Both (A) and (B)
- DFlame cells
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$\begin{array}{|l|l|} \hline Column\;-\;I & Column\;-\;II \\ \hline (1)\;Cellulose & (p)\;Acidic \\ \hline (2)\;Tyrosine & (q)\;CH_2\;-OH\;containing \\ \hline (3)\;Serine & (r)\;Aromatic \\ \hline & (s)\;Homopolymer \\ \hline \end{array}$
