Question

Pollen trains are preserved as fossils because of sporopollenin presence. So why their fertilisation product needs to be preserved?

Answer 1

Explanation:

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

Answer 2

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Pollen grain contains an outer wall called exine. It is most resistant organic material nd can widstand high temperature. Due to the presence of sporopollen in pollen grains are preserved as fossils.

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