Practice Quiz

MCAS Biology Practice

Category - Biology

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Which of the following relationships is an example of mutualism?
  1. A lion eats a gazelle.
  2. A virus uses both a bird and a horse as hosts.
  3. A bacterium breaks down dead plant materials.
  4. A bird eats food particles from a crocodile’s teeth.
Explanation
Answer: D - A bird eats food particles from a crocodile’s teeth.
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