What flower mechanism would help prevent pollination by a foreign plant species?

Question

Quizplus · Accepted Answer

All of the mechanisms listed would help prevent pollination by a foreign species. Option A would ensure that only compatible pollen from the same species can fertilize the ovules. Option B would reduce the chance of a foreign pollen grain successfully attaching to the stigma. Option C would limit the amount of time a pollinator spends on each flower, thus reducing the chance of it carrying foreign pollen to another species. Option D would limit the number of pollinators visiting a particular species of flower and reduce the chance of cross-pollination. Therefore, all of the options would help prevent pollination by a foreign plant species.

What Flower Mechanism Would Help Prevent Pollination by a Foreign