Biology

The correct answer is: A.It is marked by long periods of stability interrupted by rapid changes.

Explanation:

Punctuated Equilibrium suggests that evolutionary change does not occur at a constant, gradual pace. Instead, species tend to experience long periods of little to no change (stability), followed by relatively short bursts of rapid change, often in response to environmental shifts, genetic mutations, or other factors. This theory contrasts with gradualism, which posits that evolution is a slow, continuous process ...