Fact 1: Plant reproduction requires pollination.

Fact 2: An insect visitor is required for pollination and they have a mixed mating system.

Given the two facts above, answer the question "plant reproduction requires" with the following options: 
- seeds
 - an insect
 - bloom time
 - sunlight
 - energy
 - Energy.
 - gene flow
 - direct energy


 

  an insect       