You are presented with the question "what utilize photosynthesis for chemical energy" and the following answer choices: 
- Most plants
 - Primary producers
 - engines
 - circulatory systems
 - organisms
 - dirt
 - heterotrophs
 - solar panels

Now knowing that photosynthesis means producers convert from carbon dioxide, water, and solar energy into carbohydrates for themselves and primary producers convert solar energy into chemical energy, choose the best answer.


 

  Primary producers       