Which process is essential for the growth of an organism?

After four successive mitotic divisions of a cell,in an arithmetic growth pattern,the total number of cells that have lost the ability of cell division is . . . . . . .

What is the approximate height of the tallest tree, $Sequoia$ $sempervirens$ (in $m$)?

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

Etiolation in plants is caused when they

Study the following statements:
$I.$ $O_2$ helps in releasing metabolic energy,which is essential for growth.
$II.$ Nutrients are required by plants for the synthesis of protoplasm.
$III.$ Change in temperature could be detrimental for the survival of an organism.
$IV.$ Light and gravity do not affect the stages of growth.
Choose the correct option.