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प्रश्न
Describe any three adaptations in anemophilous flowers.
Give adaptations in anemophilous flowers.
Give any four adaptations of anemophilous flowers.
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उत्तर
- The flowers are small, inconspicuous, colourless, and without nectar and fragrance (odour).
- The pollen grains are light in weight, dry and produced in large numbers to increase chances of pollination considering the wastage of pollen grains.
- Stigma is feathery enough to trap pollen carried by wind currents.
- Stamens are exserted with long filaments and versatile anthers.
- Stamens and stigmas are exposed to air currents.
Notes
Students should refer to the answer according to their questions.
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संबंधित प्रश्न
Lever mechanism of pollination is observed in
- Salvia
- Jasmine
- Bougainvillea
- Butea
Geitonogamous flowering plants are genetically autogamous but functionally cross-pollinated. Justify.
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?
Compare the characteristic features of insect pollinated and wind pollinated flowers. Explain how the respective features assist in pollination.
State the name of the chief pollinating agent against the corresponding plant by choosing from those given in brackets.
Dahlia_______ .
Fill in the blanks with suitable words.
Different timings for the maturation of gynoecium and androecium is called ________.
Put a tick mark (✓) against the correct alternative in the following statements
Pollen is produced in the
What is a flower? Draw a typical flower and label its different parts.
What are the adaptations which are required in cross-pollinated
Pollination by water occurs in ______.
Heterostyly as a contrivance for cross-pollination is found in ______.
The flower which possesses both androecium and gynoecium is called perfect or ______.
The flower which does not open at all are called ______.
Advantage of cleistogamy is:
In which one of the following pollination is autogamous?
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 ______
Which of the following floral adapation are adapted by hydrophilous flowers?
What is epihydrophily?
Bird pollinated flowers are usually ______.
