In the given diagram, what does A and B indicate?

Choose the correct option.

A-Geometric growth; B-Arithmetic growth

The correct answer is Option (3) -A-Geometric growth; B-Arithmetic growth

The increased growth per unit time is termed as growth rate.

The growth rate shows an increase that may be (a) arithmetic or (b) geometrical

     (a) Arithmetic growth rate: In an arithmetic growth rate, after mitotic cell division, only one daughter cell continues to divide while the other differentiates and matures. On plotting the length of the organ against time, a linear curve is obtained  .

     (b) Geometrical growth rate: In a geometrical growth rate, after mitotic cell division, both daughter cells continue to divide. Initial growth is slow (lag phase), and it increases rapidly thereafter – at an exponential rate (log or exponential phase). However, with limited nutrient supply, the growth slows down leading to a stationary phase.