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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 ______.
विकल्प
Wind
Animals
Water
Insects
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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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संबंधित प्रश्न
With the help of a suitable example, explain protandry.
Explain the post-pollination events leading to seed production in angiosperms.
Make a list of any three outbreeding devices that flowering plants have developed and explain how they help to encourage cross-pollination.
Write two ways in which pollination may occur in plants.
Name two characteristics of flowers in which pollination occur by wind.
Can a unisexual flower be self pollinated?
- Nucellus
- Antipodals
- Synergids
- Micropyle
What is a flower? Draw a typical flower and label its different parts.
Give an account of any two biotic agents for pollination along with their adaptations.
For which of the following attractants and rewards are required?
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
Insect pollinated flowers are ______.
Which type of flower has ovary superior?
The flower which does not open at all are called ______.
Which one of the following may require pollinators, but is genetically similar to autogamy?
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
Describe any three adaptations in anemophilous flowers.
Match the Column I with Column II.
| Column I | Column II |
| A. Pea | (i) Xenogamy |
| B. Jawar | (ii) Epihydrophily |
| C. Maize | (iii) Anemophily |
| D. Vallis | (iv) Bisexual |
| E. Cannabis | (v) Geitonogamy |
What is hypohydrophily?
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 | ______ |
