In a particular environment there is plenty of food, water, cover, and space to support a large population of pheasants, but a larger quantity of predators are introduced. The predators become the _______ for pheasants in that environment.

Predators reduce the pheasant population by hunting and eating pheasants, so they limit how many pheasants can survive in the environment. They are a limiting factor; “biotic factor” describes that predators are living things, but the question asks what role they play.

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