Question

Why do you think exine should be hard ? What is function of germ pore ??​

Answer 1

Answer:

Exine has sporopollenin that makes the pollen grain resistant to the climatic regions. The germ pore it is the portion where sporopollenin is absent, it helps in the pollen tube growth. the exine should be hard so as to protect the developing pollengrin. Its made possible due to the presence of its outer most layers.

Explanation:

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Answer 2

Answer:

Exine has sporopollenin that makes the pollen grain resistant to the climatic regions. The germ pore it is the portion where sporopollenin is absent, it helps in the pollen tube growth. the exine should be hard so as to protect the developing pollengrin. Its made possible due to the presence of its outer most layers.