Scientists Have Demonstrated That as Herbivory on Orange Jewelweed (Impatiens

Multiple Choice

Scientists have demonstrated that as herbivory on orange jewelweed (Impatiens capensis) flowers increases, the proportion of selfing to outcrossing flowers increases. This occurs because

A) herbivores prefer the nectar of outcrossing flowers because of their increased sugar content.
B) the plant requires rapid reproduction to compensate for biomass loss due to herbivory.
C) selfing flowers contain more phenolics and tannins that herbivores avoid.
D) the loss of resources due to herbivory causes plants to make less expensive selfing flowers.