what do you think exime should be hard what is the function of germ pore
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exine is formed hard cz to protect pollen grain and germs pore are the open space from where pollen tube come out
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→ It age outer layer of pollen grain and very hard.
→ It age made up of sporopollenin in which is most resistance organic material present in nature .
→Sporopollenin is Resistance to high temperatures stronger acids and alkaline and also to enzyme .
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