In flowering plants, the main water transporting elements are
Tracheids
Vessels
Fibres
Both ($a$) and ($b$)
The first formed primary phloem referred as...$A$... The later formed primary pholem is referred as ...$B$...
Choose the correct combinations of $A$ and $B$
The difference in phloem of gymnosperms and angiosperms is due to
Safranine stains which elements of the tissue
Bordered pits are found in
In pteridophyta and gymnosperms which cells are present in place of companion cell