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प्रश्न
Fill in the blanks:
The ______ are coloured to attract the insects that carry the pollen. Some flowers also produce ______ or ______ that attracts insects.
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उत्तर
The petals are coloured to attract the insects that carry the pollen. Some flowers also produce sweet odour or nectar that attracts insects.
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संबंधित प्रश्न
Why are some seeds referred to as apomictic seeds?
Explain the different ways apomictic seeds can develop, Give an example of each.
Mention one advantage of apomictic seeds to farmers.
How polyembryony can be commercially exploited?
Fill in the blanks:
The male whorl, called the ________ produces ________.
Fill in the blank:
The ________contains the egg or ovum.
Match the column.
| Column - I (Structure before seed formation) |
Column - II (Structure after seed formation) |
||
| A. | Funiculus | I. | Hilum |
| B. | Scar of ovule | II. | Tegmen |
| C. | Zygote | III. | Testa |
| D. | Inner integument | IV. | Stalk of seed |
| V. | Embryo | ||
What is polyembryony and how can it be commercially exploited?
What is pollen grain?
Give reason: Nucellar polyembryony is significant in horticulture.
