Which Statement About Mutualisms Is False

Multiple Choice

Which statement about mutualisms is false?

A) They can evolve into consumer-resource relationships.
B) Darwin thought mutualisms were an example of structures of one species evolving for the exclusive good of another.
C) They involve biological barter.
D) Their evolutionary consequences are hard to predict.
E) The net effect of a mutualism on fitness may vary depending on environmental conditions.