Deposition of new materials inside the cell wall of cells starts in

$A$ rubber band stretches and reverts back to its original position. Bubble gum stretches,but it would not return to its original position. Is there any difference between the two processes? Discuss it with respect to plant growth. [Hint: Elasticity (reversible),Plasticity (irreversible)]

The growth in plants is

The maximum growth rate occurs in

In which organisms does growth occur continuously throughout their lifespan?

Write the characteristics of the growth phase.