Answers

2016-04-22T10:22:55+05:30
Exine should be hard coz It protects pollen grains during unfavourable conditions.
Germ pore helps in the formation of pollen tube and the release of male gamete in during the fertilization..
2 3 2
2016-04-22T17:45:57+05:30
The exine should be hard because it protects the pollen grain under adverse conditions.The function of germ pores is to release the male gametes.
0