Pollen grains are well preserved as fossils b | vedclass

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(D) The exine of pollen grains is made up of a highly resistant organic material called $Sporopollenin$.$Sporopollenin$ is one of the most resistant o

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Sporopollenin

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(D) The exine of pollen grains is made up of a highly resistant organic material called $Sporopollenin$.$Sporopollenin$ is one of the most resistant organic materials known.It can withstand high temperatures,strong acids,and alkali conditions.No enzyme that degrades $Sporopollenin$ is known to date.Due to this characteristic,pollen grains are well preserved as fossils.

Pollen grains are well preserved as fossils because of the presence of . . . . . . .

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