MCQ
Which of the following is not a class?
- APisces
- BAmphibia
- ✓Annelida
- DReptilia
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$(I)$. pre and postsynaptic neurons are in very close proximity
$(II)$. pre and postsynaptic neurons are separated by synaptic cleft
$(III)$. impulse transmission is very fast
$(IV)$. electrical synapses are common in our system
Select the correct option
$\begin{array}{|l|l|} \hline Column\,\,-I & Column\,\,-II \\ \hline A.\,\,Natural\,\,auxin & 1.\,\,IAA \\ \hline B.\,\,Synthetic\,\,auxin & 2.\,\,NAA \\ \hline & 3.\,\,IBA \\ \hline & 4.\,\,2-4-D \\ \hline \end{array}$
$A - B$