Movements of leaves of sensitive plant, $Mimosa \text{ } pudica$, are due to

$A$ leaf of $20 \; cm^{2}$ grows $5 \; cm^{2}$ per hour and a leaf of $25 \; cm^{2}$ grows $5 \; cm^{2}$ per hour. The relative growth rate of leaf $A$ and $B$ respectively is:

$A$ few normal seedlings of tomato were kept in a dark room. After a few days,they were found to have become white-coloured like albinos. Which of the following terms will you use to describe them?

Identify the phases of growth in sequential order.

Introduce the mathematical form of growth.

During which phase is the rate of growth the maximum?