It provides the medium for enzymatic activities needed for growth.

In the sigmoid growth curve,the alphabets indicate the sequence of events. Choose the correct option where the alphabet specifies the event.

Which one of the following is the motive force for growth?

Growth at the cellular level is the increase in the amount of:

In the following diagrammatic representation showing stages of embryonic development,identify the type of growth phase labelled as $M$ and $N$.

Describe the log phase in geometrical growth.