Pollen grains are well-preserved as fossils d | vedclass

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(A) The exine of the pollen grain is composed of a highly resistant organic material called $Sporopollenin$. $Sporopollenin$ is one of the most resist

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Sporopollenin

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(A) The exine of the pollen grain is composed 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 remarkable stability,pollen grains are well-preserved as fossils.

Pollen grains are well-preserved as fossils due to the presence of which substance?

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