Both vessels and companion cells are absent in
Angiosperms
Pteridophyta
Gymnosperms
In $(b)$ and $(c)$
Aerenchyma is formed in the tissue of
The only plant cells without nuclei among the following are
Which of the following cells is not totipotent
In a vascular bundle, if xylem vessels develop in a centripetal fashion, the xylem is likely to be