Is the exine wall of pollengrain hard
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Yes....EXINE is the hard outer layer of pollen grain.......and made up of sporopollenin which is one of the most resistant organic material known..........
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The most striking element of the pollen grain is the that it is tough and hard in nature it is also extreme, safe external coat named the exine which is regularly extravagantly produced. The exine does not create over specific areas which characterize the places of the germination openings. Openings demonstrate wide variety including lengthening wrinkles and indirect pores or blends of the two. The opening number, position, and exine ornamentation are helpful ordered characters and from the fossil record permit the reproduction of the species structure of past vegetation and additionally discovering applications in scientific science.
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