How might a dramatic decrease in vegeta-tion lead to a decrease in a prey species? (Hint: Think of how the vegetation, prey, and predator could be connected in a food chain.)

If vegatation were to decrease then primary consumers that are herbivores which are usually the prey will start to decrease too, because there food source is becoming limited. It's like a domino effect, if something is unbalanced in the ecosystem then the whole ecosystem could collapse.