Distribution of growth in a root by marking it at equal intervals with Indian ink was originally studied by

Vegetation growth is usually immeasurable. Explain.

What is $P$ in the given curve?

What type of phenomenon is the blooming of a flower from a floral bud?

In plants, growth is observed ..........

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.