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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Describe any three adaptations in anemophilous flowers. - Biology

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प्रश्न

Describe any three adaptations in anemophilous flowers.

Give adaptations in anemophilous flowers.

Give any four adaptations of anemophilous flowers.

लघु उत्तर
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उत्तर

  1. The flowers are small, inconspicuous, colourless, and without nectar and fragrance (odour).
  2. The pollen grains are light in weight, dry and produced in large numbers to increase chances of pollination considering the wastage of pollen grains.
  3. Stigma is feathery enough to trap pollen carried by wind currents.
  4. Stamens are exserted with long filaments and versatile anthers.
  5. Stamens and stigmas are exposed to air currents.
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Notes

Students should refer to the answer according to their questions.

  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Sexual Reproduction in Flowering Plants - TEST YOUR PROGRESS [पृष्ठ ६२]

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नूतन Biology [English] Class 12 ISC
पाठ 2 Sexual Reproduction in Flowering Plants
TEST YOUR PROGRESS | Q 9. | पृष्ठ ६२

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

Lever mechanism of pollination is observed in

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  3. Bougainvillea
  4. Butea

Name the part of the flower which the tassels of the corn- cob represent.


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Draw a diagram of a section of a megasporangium of an angiosperm and label funiculus, Micropyle, embryosac and nuclleus.


State four features of flowers pollinated by insects.


Give four adaptations shown by flowers pollinated by wind.


Can a plant flowering in Mumbai be pollinated by pollen grains of the same species growing in New Delhi? Provide explanations to your answer.


Coelacanth was caught in South Africa. State the significance of the discovery of Coelacanth in the evolutionary history of vertebrates.


Draw an L.S. of pistil showing pollen tube entering into the embryo sac. Label the following:
  1. Nucellus
  2. Antipodals
  3. Synergids
  4. Micropyle

Name the two types of pollination.


In some plants anther and stigma mature at the same time this condition is called ______.


In the dioecious aquatic plant shown, identify the characteristics of the male flowers that reach the female flowers for pollination:

  Size of the flower Colour of flower The characteristic feature of pollen grain
A small brightly coloured Lightweight and non-sticky
B large colourless large and sticky
C small white small, covered with mucilage
D large colourless non-sticky

Which type of pollination does the figure indicate?


Describe any three adaptations in hydrophilous flowers.


What is hypohydrophily?


What is epihydrophily?


Name the following:

Aquatic plants which are anemophilous.


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