$A$ : Cells of sclerenchyma have thickened secondary walls.
$R$ : Cells have deposition of lignin.
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
Bordered pits are found in
The first formed primary phloem is referred as ...$A$... The later formed primary phloem is referred as ...$B$...
Choose the correct combination of $A$ and $B$
Promeristems can be distinguished from primary meristems by
Hydrophytes can float on water due to the presence of large number of
Epidermis in stem is produced from