MCQ
Vascular bundles in dicot stem are
- AConjoint and collateral
- BConjoint and closed
- ✓Conjoint, collateral and open
- DCollateral and open
Collateral bundle having a cambium between xylem and phloem is said to be of the open type. $e.g.$, Dicot stem.
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$(i)$ Secondary cortex $(ii)$ Wood $(iii)$ Secondary phloem $(iv)$ Phellem The correct order is
$\begin{array}{|p{0.3\linewidth}|p{0.5\linewidth}|} \hline Column\,\,-I & Column\,\,-II \\ \hline A.\,\,Schleiden & 1.\,\,Nucleus \\ \hline B.\,\,Schwann & 2.\,\,German\,\,botanist \\ \hline C.\,\,Robert\,\,brown & 3.\,\,Living\,\,cell \\ \hline D.\,\,Leuwen\,\,hoke & 4.\,\,Britain\,\,Zoologist \\ \hline \end{array}$