Question

Entomophily is a form of pollination where pollen grains of flowering plants are distributed by insects. Which of the following is not a characteristic of insect-pollinated flower?

• A. Stigmas are usually branched and dry
• B. Possess nectar or edible pollen
• C. Pollen grains are sticky or spiny
• D. They are large and brightly coloured

Answer 1

Answer: (A)

Stigmas are usually branched and dry

The following are the characteristics of insect-pollinated flower:

1) pollen grains are sticky so that they can easily stick to the insect's body.

2) Flowers produce nectar to attract insects.

3) The large and colored petals are also to attract insects.

The stigma is a part where the pollen should reach in order to reproduce. Stigmas may be wet and dry. It is the place where the process of fertilization commences. Thus, the stigmas are not the characteristic of insect-pollinated flower.