MCQ
The excretory structures of flat worms/ Taenia are:
- AFlame cells.
- BProtonephridia.
- CMalpighian tubules.
- DGreen glands.
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$\begin{array}{|l|l|} \hline Column\,\,-I & Column\,\,-II \\ \hline A.\,\,Natural\,\,auxin & 1.\,\,IAA \\ \hline B.\,\,Synthetic\,\,auxin & 2.\,\,NAA \\ \hline & 3.\,\,IBA \\ \hline & 4.\,\,2-4-D \\ \hline \end{array}$
$A - B$