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4 January, 06:27

You are an aquatic biologist studying a small lake. The stream that drains into this lake runs by croplands. You are detecting a pesticide called atrazine in the insects and worms that live in the lake, but the predatory birds such as herons and egrets have very high concentrations of atrazine in their blood. The birds prey on the frogs and small fish. What process explains the high atrazine level in the birds?

A. antagonistic interaction

B. persistence

C. chronic effect

D. biological magnification

E. none of these answers

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Answers (2)
  1. 4 January, 06:42
    0
    D. The answer is biological magnification.
  2. 4 January, 06:56
    0
    e

    Explanation:

    the reason the birds have such a high concentration is because the food they eat has it and the food's food has so it becomes a high amount
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