This is an example of which factor that affects biodiversity? Several years ago, fish from Asia were introduced into ponds in the United States. They have rapidly grown in numbers and use up a lot of the food and habitats of other fish that are natural to the United States.

The fish were brought from Asia to ponds in the United States, so they are nonnative species in that environment. Because they multiply and take food and habitat from native fish, they can reduce biodiversity. This is not pollution, habitat destruction, or poaching.

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