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प्रश्न
Very short answer type question:
What is hydrophily?
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उत्तर
Pollination carried out by water is called hydrophily.
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संबंधित प्रश्न
A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds.
Answer the following questions giving reasons :
(a) What is the minimum number of pollen grains that must have been involved in the pollination of its pistil?
(b) What would have been the minimum number of ovules present in the ovary?
(c) How many megaspore mother cells were involved?
(d) What is the minimum number of microspore mother cells involved in the above case?
(e) How many male gametes were involved in this case?
Fill in the blanks with suitable words.
Different timings for the maturation of gynoecium and androecium is called ________.
Differentiate between geitonogamy and xenogamy (allogamy).
A botanist studying Viola (common pansy) noticed that one of the two flower types withered and developed no further due to some unfavorable condition, but the other flower type on the same plant survived and it resulted in an assured seed set. Which of the following will be correct?
Advantage of cleistogamy is:
Describe any three adaptations in anemophilous flowers.
Consider the following statements depicting adaptation of flowers to carryout successful pollination.
- Stigma is long, sticky and unwettable.
- Sepals, petals or perianth (if present) have waxy coating.
- Stamens with long filament and versatile anthers.
- Tubular corolla is seen.
- Flowers are noctumal.
Which of the above statements clearly depict hydrophily?
Give any four floral adaptations for chiropterophily.
What are the major abiotic factors that influence habitat?
Briefly discuss any two methods by which plants avoid self-pollination.
