Biology, asked by ArslanxD4181, 20 days ago

Pollen grains can be preserved as fossil because

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Answered by 1984premakumari

0

Pollen grains are well preserved as fossils because of the presence of sporopollenin. Pollen grains have a prominent two-layered wall. The hard outer layer called the exine is made up of sporopollenin which is one of the most resistant organic material known.

So, the correct answer is 'sporopollenin'

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