Assertion A: Pollen grains are found in the f | vedclass

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(A) The outer layer of the pollen grain,known as the exine,is made up of a highly resistant organic material called sporopollenin.Sporopollenin is one

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Assertion $A$ and Reason $R$ both are correct,Reason $R$ is the correct explanation for Assertion $A$.

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(A) The outer layer of the pollen grain,known as the exine,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.Due to the presence of this substance,pollen grains are well-preserved as fossils.Therefore,both Assertion $A$ and Reason $R$ are correct,and Reason $R$ is the correct explanation for Assertion $A$.

Assertion $A$: Pollen grains are found in the form of fossils.
Reason $R$: Sporopollenin is seen in its outer layer.

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Assertion $A$: Pollen grains are found in the form of fossils.Reason $R$: Sporopollenin is seen in its outer layer.