The time interval between the appearance of two successive leaves or pairs of leaves is termed as:

The coiling of garden pea tendrils around a support is an example of which phenomenon?

It provides the medium for enzymatic activities needed for growth.

Constantly dividing cells,both at the root apex and shoot apex,represent:

The $S$-shaped growth curve and 'grand period of growth' may change with:

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.