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1. Which of the following relationships is an example of mutualism?

A. A lion eats a gazelle.
B. A virus uses both a bird and a horse as hosts.
C. A bacterium breaks down dead plant materials.
D. A bird eats food particles from a crocodile's teeth.

1 Answer

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D. A bird eats food particles from crocodiles' teeth.

User Andy MacKinlay
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