Growth of plants is different from the growth of animals in:

Equipment used for the measurement of growth in plants is known as

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 statements is incorrect regarding growth?

Match the following columns regarding the parameters of growth:

Column-$I$ (Structure for growth)	Column-$II$ (Parameter)
$P$. Maize root apical cell	$I$. Length
$Q$. Watermelon cell	$II$. Number
$R$. Pollen tube	$III$. Size
$S$. Dorsiventral leaf surface	$IV$. Surface area

When young plants are grazed too heavily,they get killed because of