Question

Attractants and rewards are required for
A) Cleistogamy
B) Anemophily
C) Entomophily
D) Hydrophily

Answer 1

Hint: We all know that Attractant and rewards are very interesting parts of the pollination process. Attractant includes flowers’ bright color and fragrance. And rewards include nectars and pollen grains. The colors of flowers attract the insect for their pollination process.

Complete answer:
A) Cleistogamy - It is a type of self-operating pollination technique of some plants. They are propagated by using non-opening, self-pollinating flowers. So they do not need any attractants and rewards. Thus it is the wrong answer.
B) Anemophily – it is wind pollination. Here pollen is distributed by wind. So they also do not need attractants/rewards. It is the wrong option.
C) Entomophily – it is insect pollination. Here pollen is carried by an insect. Insects are attracted by the attractants of plants and spores are distributed by them. So here attractants and rewards are required for pollination. Thus it is the correct option.
D) Hydrophily – Here pollen is distributed by the water flow. Thus it has no requirement for attractants and rewards. So it is the wrong option.

The correct option is C) Entomophily.

Note: Entomophilous flowers are likely bright colored and scented. They secrete nectar.
In some species of entomophilous flowers, there are structural differences between the flowers to ensure cross-pollination.
Entomophilous flowers are usually bisexual. Their pollen grains are sticky and spiny.
The agents of pollinations are bees, moths, butterflies, beetles, wasps, etc.
Bees do 80 percent of pollination.