You are presented with the question "what do most copepods feed on?" and the following answer choices: 
- animals
 - bacteria and algae
 - density
 - body water
 - scarce resources
 - salt and water.
 - an organism's body
 - oxygen

Now knowing that phytoplankton are bacteria and algae that use sunlight to make food and most copepods feed on phytoplankton, choose the best answer.


 

  bacteria and algae       