Multiple choice Which of the following is not a characteristic feature of flowers pollinated by water? Pollen grains are produced in a large number. Flowers are light in weight. Flowers are small and inconspicuous. Plants are monoecious. Pollen grains have specific gravity equal to water. Reveal answer Fill a bubble to check yourself D Correct answer Explanation Plants are dioecious, i.e. male and female flowers borne on separate plants.