You are presented with the question "Producers use energy and inorganic molecules for what?" and the following answer choices: 
- neutralizing threats
 - dismissal of nutrients
 - heat produced
 - Transfers energy
 - retention of nutrients
 - decomposition
 - agriculture
 - iron in water

Now knowing that producers use energy and inorganic molecules to make food and food preparation for retention of nutrients is included, choose the best answer.


 

     retention of nutrients    