Question

Why pollengrains can remain well preserved as fossil?​

Answer 1

Explanation:

No enzyme that degrades sporopollenin is so far known. 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 known.

Answer 2

Answer:

Due to prescence of a 2 layered wall called as sporoderm which is made up of thick , non biodegradable substance called as sporopollenin.

Explanation:Due to prescence of a 2 layered wall called as sporoderm which is made up of thick , non biodegradable substance called as sporopollenin.