Final answer:
True - A group that experiences a period of inertia followed by a burst of activity is progressing in a punctuated equilibrium process.
Step-by-step explanation:
Punctuated equilibrium is a model of the timing of evolution where long periods of little evolutionary change are interrupted by bursts of rapid evolutionary change. In this process, a group experiences a period of inertia followed by a burst of activity. So, it is True that a group that experiences a period of inertia followed by a burst of activity is progressing in a punctuated equilibrium process.