मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

A particular species of plant produces light, non-sticky pollen in large numbers and its stigmas are long and feathery. These modifications facilitate pollination by ______.

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प्रश्न

A particular species of plant produces light, non-sticky pollen in large numbers and its stigmas are long and feathery. These modifications facilitate pollination by ______.

पर्याय

  • Wind

  • Animals

  • Water

  • Insects

MCQ
रिकाम्या जागा भरा
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उत्तर

A particular species of plant produces light, non-sticky pollen in large numbers and its stigmas are long and feathery. These modifications facilitate pollination by wind.

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पाठ 2: Sexual Reproduction in Flowering Plants - MULTIPLE CHOICE QUESTIONS [पृष्ठ ११]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
पाठ 2 Sexual Reproduction in Flowering Plants
MULTIPLE CHOICE QUESTIONS | Q 12. | पृष्ठ ११

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

Make a list of any three outbreeding devices that flowering plants have developed and explain how they help to encourage cross-pollination.


Describe the structure of its microsporangium.


When maturation time of reproductive parts in a flower is different.


Give four adaptations shown by flowers pollinated by wind.


What are the adaptations which are required in self-pollinated plants?


What are the different adaptations shown by bird-pollinated flowers?


Pollination by water occurs in ______.


During Hybridization process anther of the bisexual flower is removed before it dehisces is called ______.


The flower which does not open at all are called ______.


Pollination refers to the ______.


In which one of the following pollination is autogamous?


Autogamy can occur in a chasmogamous flower if ______.


Which of the following floral adapation are adapted by hydrophilous flowers?


Mention any one example of the anemophilous flower.


What are the major abiotic factors that influence habitat?


Complete the following table:

Sr. Type of pollination Agent Kind of flower Examples
(i) ______ Wind ______ Maize
(ii) Chiropterophily ______ Dull colour, with strong fragrance, abundant nectar Adansonia
(iii) Entamophily Insects ______ Rose/Jasmine
(iv) Ornithophily ______ Brightly coloured, large and showy. They secrete profuse, dilute n ectar ______

Identify the set of correct statements:

  1. The flowers of Vallisneria are colourful and produce nectar.
  2. The flowers of waterlily are not pollinated by water.
  3. In most of water-pollinated species, the pollen grains are protected from wetting.
  4. Pollen grains of some hydrophytes are long and ribbon like.
  5. In some hydrophytes, the pollen grains are carried passively inside water.

Choose the correct answer from the options given below:


Anemophily is the process of pollination by which agent?


Hydrophily (Hypo) is characterized by which of the following conditions?


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