Fact 1: Pollination is the fertilization step in the sexual reproduction of plants.

Fact 2: Fertilization As far as fertilization, timing is critical.

Given the two facts above, answer the question "When is timing critical for plants?" with the following options: 
- in the sexual reproduction
 - Earth's weather system
 - The flowers are pollinated
 - during the day
 - It helps them survive
 - the Earth being tilted
 - Earth revolving around the sun
 - seed dispersal


 

 in the sexual reproduction        