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प्रश्न
Name two characteristics of flowers in which pollination occur by wind.
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उत्तर
Special features of wind-pollinated flowers:
(a) They produce light pollen so that it is easily carried away.
(b) They produce a large quantity of pollen.
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संबंधित प्रश्न
As a senior biology student you have been asked to demonstrate to the students of secondary level in your school, the procedure(s) that shall ensure cross-pollination in a hermaphrodite flower. List the different steps that you would suggest and provide reasons for each one of them.
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?
Give the floral adaptations for anemophily.
Name of the part of the ovary which gives rise to:
Fruit ______
Mention any two contrivances in flowers which favour cross-pollination.
Give four adaptations shown by flowers pollinated by wind.
What are the adaptations which are required in self-pollinated plants?
Give an account of any two biotic agents for pollination along with their adaptations.
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 ______.
Pollination by water occurs in ______.
