Which of the following is an example of a mutualistic interaction?
A) Barnacles obtain safe haven by riding on a whale, while the whale is unaffected.
B) A bacterium fixes nitrogen, thereby providing nutrient for a plant, while the plant provides protection for the bacterium.
C) A virus infects a bird, thus reducing the bird's fecundity.
D) Both a and b
E) None of the above

Question

Quizplus · Accepted Answer

In mutualistic interactions, both species benefit from the interaction. In this example, the bacterium fixes nitrogen, which is a necessary nutrient for the plant. In return, the plant provides protection for the bacterium.

Which of the Following Is an Example of a Mutualistic