In plants, the purpose of auxins is to a. bring about apical dominance. b. cause plant dormancy. c. regulate abscission. d. produce phytochrome.

Which of the following does not describe a function of aggressive animal behavior? a. aggressive behavior leads to fights that allow strong animals kill off weaker members of the species. b. aggressive behavior is displayed to establish territorial boundaries. c. aggressive behavior is displayed to establish hierarchy without violence. d. aggressive behavior is displayed to determine who is allowed to mate.