Match the following:

Column-$I$	Column-$II$
$(p)$ Intine	$(v)$ Long structure
$(q)$ Exine	$(w)$ Nutrition to pollen grain
$(r)$ Pollen tube	$(x)$ Sporopollenin
$(s)$ Tapetum	$(y)$ Pectin,cellulose
	$(z)$ Glycogen

In $Paramecium$,both autogamy and conjugation are considered sexual processes because of:

Explain why meiosis and gametogenesis are always interlinked?

Synergids are helpful in . . . . . . .

Choose the correct option for the given statements:
$(i)$ In western countries, a large number of pollen products in the form of tablets and syrups are available in the market.
$(ii)$ In rice and wheat, pollen grains lose viability within $30$ months of their release.
$(iii)$ Pollen grains are stored at room temperature for future use.
$(iv)$ Pollen grains are released from the seeds of wheat and rice.

Identify the ploidy of the following cells: Generative cell,Male gamete,Microspore mother cell,Microspore,Tube cell.