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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
Fill in the blanks:
The male whorl, called the ________ produces ________.
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
Fill in the blanks:
The ______ are coloured to attract the insects that carry the pollen. Some flowers also produce ______ or ______ that attracts insects.
What is adventive polyembryony?
Give an account of polyembryony.
Apomixis is a type of reproduction that results is the development of a/an ______.
The occurrence of two or more embryos in one ovule is called ______
In case of polyembryony, if an embryo develops from the synergid and another from the nucellus which is haploid and which is diploid?
The plant part which consists of two generations, one within the other-
- Pollen grains inside the anther.
- Germinated pollen grain with two male gametes.
- Seed inside the fruit.
- Embryo sac inside the ovule
Choose the correct option.
Give reason: Nucellar polyembryony is significant in horticulture.
