Question

A large population of Yellow perch lives in the East river. The Walleye is a larger fish that eats the Yellow Perch. Despite lots of prey all the Walleye have moved from the East river to a new river. What most likely caused the Walleye to move to a different river? There is a lack of food in the East river which caused the Walleye to move to a different area. The Walleye are no longer able to catch the Yellow Perch and need to move to a different area. There is climate change which has caused the resources to decline in the East river. There is pollution in the East river that the Yellow Perch are adapted to but the Walleye are not.

Answer 1

There is pollution in the East river that the Yellow Perch are adapted to but the Walleye are not.

Answer: Option D.

Explanation:

According to the information that has been given in the question, the Walleye has moved from the east river to some other river. Even though the prey that they have for food which is the yellow perch, then also they move from the east river to the other.

The probable reason for this is that the east river might be polluted. The yellow perch might have got adapted to this pollution and making this survival possible. But the walleye could not adapt to it.