Fact 1: Bacteria in soil convert atmospheric nitrogen into a form usable by plants.

Fact 2: Many plants produce flowers.

Given the two facts above, answer the question "What converts nitrogen for flowers?" with the following options: 
- Enzymes
 - bees
 - eukyarotes
 - heterotrophs
 - mitosis
 - Echinoids
 - bacteria
 - Roundworms.


 

       bacteria  