Card 52 / 112: The swollen-thorn Acacia tree lacks chemical compounds that could aid in thwarting predators. However, the Acacia has large thorns that house ants. These ants attack browsing mammals and prune back competing plants. This relationship between the ants and the Acacia tree is an example of which of the following?
A) A predator/prey relationship
B) Mutualistic symbiosis
C) Parasitism
D) Producer/consumer relationship

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