Sperm cells of angiosperms differ from the rest of the plant groups like gymnosperms by
In angiosperms the sperm cells are non-motile whereas in the others they are flagellate
In angiosperms the sperm cells are produced in the pollen grain whereas in the rest they are produced in the antheridium
In angiosperms and gymnosperms the sperm cells are non-motile whereas in the rest they are flagellated
None of the above
In plants, in nature, autogamy is avoided since the seeds produced
Given below are two statements :
Statement $I:$Cleistogamous flowers are invariably autogamous
Statement $II:$Cleistogamy is disadvantageous as there is no chance for cross pollination.
In the light of the above statements, choose the correct answer from the options given below :
Which of the following is incorrect for windpollinated plants?
Which type of pollen grains are required for wind pollination ?