allerySporopollenin lets pollen exine survive:
AOnly pure water
BStrong acids and heat
COnly freezing cold
DOnly total darkness
Answer & Solution
Correct answer: B. Strong acids and heat
1. Sporopollenin is one of the most resistant organic materials.
2. No enzyme is known to degrade it.
3. It withstands high temperatures and strong acids and alkali.
_Source: syllabus Biology, Chapter 2, Sexual Reproduction in Flowering Plants._
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