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प्रश्न
List the three stages the annuals and biennial angiosperms have to pass through during their life cycle.
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उत्तर
Vegetative, reproductive and senescent phases are the phases asociated with annual and biennial plants.
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संबंधित प्रश्न
Sketch and label stages in the development of the angiospermic female gametophyte from the functional megaspore.
In a flowering plant a microspore mother cell produces four male gametophytes, while a megaspore mother cell forms only one female gametophyte. Explain.
A capsicum flower has 240 ovules in its ovary. But, it produces a fruit with only 180 viable seeds.
Give an example of an angiosperm seed that has a perisperm. Name the part the perisperm develops from.
Name a plant which flowers every twelve years.
Explain the events upto double fertilisation after the pollen tube enters one of the synergids in an ovule of an angiosperm.
Sketch and label ‘structure of a pea flower’.
The flower is the site of ______.
Pollen grains are well preserved as fossils because of the presence of ______
Verticillaster inflorescence is a characteristic feature of ______.
Which of the following statement is incorrect?
The flower is a highly modified and condensed reproductive shoot specially meant for ______
In angiosperms, the site of sexual reproduction is ______.
Male and female reproductive structures of the angiosperms are ______.
Match List I with List II:
| List I (Types of Stamens) |
List II (Example) |
||
| A. | Monoadelphous | I. | Citrus |
| B. | Diadelphous | II. | Pea |
| C. | Polyadelphous | III. | Lily |
| D. | Epiphyllous | IV. | China-rose |
Choose the correct answer from the options given below:
Which of the following is considered an "essential whorl" of a flower?
What is the main function of the corolla?
