Which of the following statement is correct?

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Pollen grains are generally spherical and prominent two-layered wall. The hard outer layer (called the exine) is made up of sporopollenin which is one

Vedclass · Accepted Answer

Sporopollenin can withstand high temperature as well as strong acids and alkalis

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Pollen grains are generally spherical and 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. It can withstand high temperatures and strong acids and alkali.

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