Question 27
A nail is inserted in the trunk of a tree at a height of 1 metre from the ground level. After 3 years the nail will
(a) move downwards
(b) move upwards
(c) remain in the same position
(d) move sideways
(c) remain in the same position
After 3 years the nail will remain in the same position. It does not move upwards as the apical meristem responsible for growth (length) is present in the apices only and lateral meristem responsible for increase in girth will lead to no change in length.