Question

7. 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 at the same position
(d) move sideways​

Answer 1

Answer:

Explanation:   (c) When a nail is inserted in the trunk of a tree at a height of 1 metre from the ground, even after 3 year the nail remains at same level. It does not moves upwards as the apical meristem responsible for growth (length) is present in the apices only and lateral meristem responsible of increase in girth will lead to no change in length.

Answer 2

Explanation:

When a nail is inserted in the trunk of a tree at a height of 1 metre from the ground, even after 3 year the nail remains at same level. It does not moves upwards as the apical meristem responsible for growth (length) is present in the apices only and lateral meristem responsible of increase in girth will lead to no change in length.