Apical meristems are present at the
Tips of roots
Tips of shoots
Lateral sides of roots and shoots
Both ($a$) and ($b$)
Initiation of lateral roots and vascular cambium during the secondary growth takes place in these cells.
Heartwood differs from sapwood in
Which would do maximum harm to a tree ? The loss of
The histogens are classified on the basis of
How many histogens are present at the apex of root