Question

Q1. "Corn cobs have long tassels. This is because
A. they are useful in protecting the pollen grains from wetting.
B. they can easily attract insects.
C. it helps them to reach the surface of water which helps them to get pollinated by
insects.
D, they can easily trap the pollen grains from air,​

Answer 1

Answer:

The correct option for this is option D) They can easily trap the pollen grains from the air.

Explanation:

Corn cobs have longer tassels. The reason for this adaptation is to entrap all the airborne or windblown pollen grains effectively for the process of pollination and enhance the chances of fertilization. The corn cob tassels act as the stigma and style of the female gametophyte and therefore are long enough to trap the male gametes i.e the pollens. The pollens can very readily stick to the tassels and reach the female gamete. This is their adaptation to ensure their survival by enhancing their fertilization chances.

Answer 2

Corn cobs have long tassels because- D. they can easily trap the pollen grains from air.

• Corns are monoecious plants in which wind pollination takes place. Stamens are absent in corns. They have tassels that help in the pollination process.
• The tassels are long structures that act as stigma and styles of corn plants. The long tassels of corn cobs help in trapping pollen grains from the air to ease pollination and hence, ensure fertilisation.