Answer:
The relationship between prey population size and carrying capacity can help determine if a system is structured by bottom-up or top-down forces. If the system is structured by bottom-up forces, prey population size will be directly related to carrying capacity. In contrast, if the system is structured by top-down forces, the relationship may be more complex. If predation is the primary limiting factor, the prey population may not reach carrying capacity, even if there are enough resources available.