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प्रश्न
A moss plant is unable to complete its life cycle in a dry environment. State two reasons.
उत्तर
A moss plant is unable to complete its life cycle in a dry environment because
- In mosses, fertilisation of male and female gametes takes place in water.
- The male gametes antherozoids swim in water to reach the eggs for sexual reproduction to take place.
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संबंधित प्रश्न
Name the organic material exine of the pollen grain is made up of. How is this material advantageous to pollen grain?
Where is sporopollenin present in plants?
Name the structures formed at the end of microsporogenesis and megasporogenesis events.
How many microspore mother cells are required to produce 1000 microspores/pollen grains?
Point out the odd one.
Haploid plant cultures are got from ______.
Fertilization involving carrying of male gametes by pollen tube is ______.
In angiosperms various stages of reductional division can best be studied in ______.
Sepals and petals or perianth are inconspicuous in entomophilous flowers.
Draw a neat and well labelled diagram of T.S. of anther.
