Answer:
the prey population experiences unregulated exponential growth
Step-by-step explanation:
In the Lotka-Volterra predator-prey model, when the predator population size equals zero, the prey population experiences unregulated exponential growth. In this scenario, without predators to control their population, the prey population increases without constraints, following a pattern of exponential growth. This aspect of the model represents the idea that in the absence of predators, prey populations can grow rapidly.