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  • 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

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

 

Answers (1)

Answer -(c)
Solution:
The growth in the plants is because of the presence of meristematic tissue. Apical meristem is located on the tip of root and shoot. If we insert a nail in trunk of a tree at a height of 1 metre from the ground, even after 3 year the nail remains at same level. It will not change its position 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.
The correct option is (c)- remain at the same position

 

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infoexpert27

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