In the figure of the sigmoid growth curve given below,label segments $1$,$2$,and $3$.

(N/A) The sigmoid growth curve represents the growth of an organism or organ over time. The segments are labeled as follows:
$(1)$ Lag phase: This is the initial phase where growth is slow as the organism or cells are adjusting to the environment.
$(2)$ Exponential phase (or Log phase): This is the phase of rapid growth where the rate of growth increases significantly.
$(3)$ Stationary phase: This is the final phase where the growth rate slows down and eventually levels off due to limited resources or other environmental factors.