In the given figure, which component has thin outer walls and highly thickened inner walls?
$D$
$A$
$B$
$C$
The outside of the epidermis is often covered with a waxy layer, its functions is.....
Lenticels are involved in :
Vessels are not present in the xylem of
Write a note on the Ground Tissue System.
Which of the following would not secrete a cuticle