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प्रश्न
Explain the Following Term:
Ornithophily
उत्तर
Ornithophily-Pollination affected by birds
APPEARS IN
संबंधित प्रश्न
'Formation of primary endosperm nucleus is called triple fusion'. Give reason
Read the following statement and answer the questions that follow :
"A guava fruit has 200 viable seeds."
(a) What are viable seeds?
(b) Write the total number of :
(i) Pollen grains (ii) Gametes
in producing 200 viable guava seeds.
c) Prepare a flow-chart to depict the post-pollination events leading to viable-seed production in a flowering plant.
During double fertilization second male gamete fuses with ___________.
What happens to the following after fertilization?
Ovules
What happens to the following after fertilization?
Calyx
Even though each pollen grain has 2 male gametes, why at least 20 pollen grains are required to fertilize 20 ovules in a particular carpel?
Caruncle develops from
Name the cell which divides to form male nuclei.
‘Pollination in Gymnosperms is different from Angiosperms’ – Give reasons.
By which of the following double fertilization is exhibited?
