Question

Which of the following characteristics indicates that a flower is hydrophilous?
(i) It produces pollen grains in large numbers.
(ii) Some pollen grains have specific gravity that is very similar to that of water.
(iii) Some plants have male flowers floating on the water surface till they meet the female flowers.
(iv) Vallisneria is a water-pollinated flower.

• A. (ii), (iii), and (iv)
• B. (ii) and (iv)
• C. All of the above
• D. (i), (ii), and (iii)

Answer 1

The correct option is C All of the above

Hydrophilous flowers produce a large number of pollen grains to make sure that at least some pollen grains reach the stigmas of other flowers, leading to successful pollination. Pollen grains have the same specific gravity as water, which helps them to keep floating, thereby increasing the chance of pollination. Vallisneria is one of the flowers in which the male flowers keep floating on water until they meet the female flowers for pollination. This increases the chance of a successful pollination