You have been studying the relationship between jackals and tigers in India. Until recently, the only relationship you have observed is that jackals will associate themselves with a particular tiger and follow it at a safe distance in order to feed on the big cat's kills. However, recently you observed a jackal alerting a tiger to a kill with a loud cry. If you continue to observe this alerting behavior, you might change the categorization of the jackal/tiger relationship from ________ to ________.
A. mutualism; parasitism
B. mutualism; commensalism
C. parasitism; mutualism
D. commensalism; mutualism
E. competition; predation
Answer: D
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