In the exponential growth equation $W_1 = W_0 e^{rt}$,what does $r$ represent?

Identify the correct and incorrect statements from the following.
$(i)$ $17,500$ new cells are produced per hour by a single maize root apical meristem.
$(ii)$ With the help of length,growth of pollen tube is measured.
$(iii)$ The growth of the leaf is measured in terms of volume.
$(iv)$ Cells in a watermelon may increase in size by up to $3,50,000$ times.

Which of the following four phases, in the post-emergence life of an angiospermic plant, begins just after the germination of the seed and ends when the plant develops the capacity to reproduce?

Which of the following increases in the absence of light?

Select the correct option for the absolute growth and relative growth of the leaf shown below.

How is expansive growth characterized?