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प्रश्न
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by ______.
विकल्प
Wind
Bat
Bee
Water
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उत्तर
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by wind.
Explanation:
Wind-pollinated flowers frequently have a single ovule in the ovary and are packed in an inflorescence. Pollen, which is lightweight and easily transported to other flowers by the wind, is usually produced in great quantities by these flowers. The crowded arrangement of an inflorescence increases the likelihood of successful wind pollination, and the single ovule guarantees that just one seed will grow following pollination. Grass and certain trees, such as pines, are examples of such plants.
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संबंधित प्रश्न
As a senior biology student you have been asked to demonstrate to the students of secondary level in your school, the procedure(s) that shall ensure cross-pollination in a hermaphrodite flower. List the different steps that you would suggest and provide reasons for each one of them.
Make a list of any three outbreeding devices that flowering plants have developed and explain how they help to encourage cross-pollination.
What is meant by emasculation?
Complete the following chart and rewrite.
| Sr.No. | Agencies | type of pollination |
| 1 | Water | .................... |
| 2 | ........................... | Entomophily |
| 3 | Bat | .................... |
| 4 | ....................... | Ornithophily |
(Or)
Explain outbreeding devices in angiospermic plants.
Name of the part of the ovary which gives rise to:
Fruit ______
Give four adaptations shown by flowers pollinated by wind.
- Nucellus
- Antipodals
- Synergids
- Micropyle
The question has four options. Choose the correct answer:
Pollination by insect is known as
Cleistogamous flowers are ______.
The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which, during pollination, brings genetically different types of pollen grains to stigma, is ______
