The cork cambium cork and secondary cortex are collectively called :
phelloderm
Leonticel
periderm
Bark
The length of different internodes in a culm of sugarcane is variable because of
Aerenchyma is found in
Periblem gives rise to
Which layer in dicot stem is rich in starch grains?
$I.$ Found only in sporophytic phase of life cycle
$II.$ May contain enzymes that are biologically active
$III.$ Often contain strengthening polymers
Select the correct option for cell wall