Different growth phases result in a

Describe the log phase in geometrical growth.

Plastochron is the .....

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.

The clinostat is used for the study of which of the following?

Shock movement in 'touch-me-not' plant is