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प्रश्न
Explain any three advantages that seeds offer to angiosperms.
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उत्तर
Seeds offer the following advantages to angiosperms:
(i) They provide nourishment and parental care to the developing embryo.
(ii) They protect the embryo from harsh environmental conditions.
(iii) The dispersal of seeds to far-off places prevents competition among the members of the same species, thus preventing their extinction.
संबंधित प्रश्न
State what is apomixis. Comment on its significance. How can it be commercially used?
Why are some seeds referred to as apomictic seeds?
Define Apomixis.
Fill in the blank:
________is the transfer of pollen grains from the anther of the flower to the stigma of the same or a different flower
Once the pollen reaches the stigma, the pollen tube traverses down the ________ to the ovary where fertilization occurs.
Fill in the blanks:
The ______ are coloured to attract the insects that carry the pollen. Some flowers also produce ______ or ______ that attracts insects.
Adventive polyembryony in citrus is due to ______.
What is polyembryony and how can it be commercially exploited?
Give reason: Nucellar polyembryony is significant in horticulture.
Explain following term:
Polyembryony
